posted 09-29-2019 08:45 AM               

Elon Musk debuts SpaceX's first Starship, aims for orbit in six months

Eleven years to the day after SpaceX's first successful rocket launch, founder and CEO Elon Musk debuted the company's first Starship, a colossal, steel-constructed spacecraft designed to fly crew and cargo to Earth orbit, the moon, Mars and "anywhere else" in the solar system.

Speaking to an audience gathered at SpaceX's Boca Chica launch site, located just north of the U.S.-Mexico border in Texas, Musk stood before the towering Starship and an example of his much more diminutive first rocket to reach orbit, the Falcon 1.

"This is, I think, the most inspiring thing I have ever seen," said Musk on Saturday (Sept. 28), admiring the 165-foot-tall (80-meter) Starship as it was lit by spotlights.

posted 12-07-2020 01:41 PM               

Starship High-Altitude Flight Test

As early as Wednesday, December 9, the SpaceX team will make the first attempt of a high-altitude suborbital flight test of Starship serial number 8 (SN8) from our site in Cameron County, Texas. The schedule is dynamic and likely to change, as is the case with all development testing.

This suborbital flight is designed to test a number of objectives, from how the vehicle’s three Raptor engines perform to the overall aerodynamic entry capabilities of the vehicle (including its body flaps) to how the vehicle manages propellant transition. SN8 will also attempt to perform a landing flip maneuver, which would be a first for a vehicle of this size.

With a test such as this, success is not measured by completion of specific objectives but rather how much we can learn, which will inform and improve the probability of success in the future as SpaceX rapidly advances development of Starship.

This past year alone, SpaceX has completed two low-altitude flight tests with Starship SN5 and SN6 and accumulated over 16,000 seconds of run time during 330 ground engine starts, including multiple Starship static fires and four flight tests of the reusable methalox full-flow staged combustion Raptor engine. Additionally, with production accelerating and fidelity increasing, SpaceX has built 10 Starship prototypes. SN9 is almost ready to move to the pad, which now has two active stands for rapid development testing.

SN8’s flight test is an exciting next step in the development of a fully reusable transportation system capable of carrying both crew and cargo to Earth orbit, the Moon, Mars, and beyond. As we venture into new territory, we continue to appreciate all of the support and encouragement we have received.

There will be a live feed of the flight test available here that will start a few minutes prior to liftoff. Given the uncertainty of the schedule, stay tuned to our social media channels for updates as we move toward our first high-altitude flight test of Starship!

posted 12-09-2020 09:25 PM               

SpaceX Starship SN8 soars on first high-altitude test, explodes on landing

A prototype for a commercial moon and Mars lander flew a successful high-altitude test flight, up until it went to land, when it slammed into the ground and exploded in a tremendous fireball.

The SpaceX Starship spacecraft (serial no. 8 or SN8) lifted off on its first suborbital flight on Wednesday (Dec. 9) from the company's Boca Chica launch site in South Texas. The six-minute and 42-second "epic" flight was deemed an overall success by SpaceX founder Elon Musk.

posted 01-27-2021 08:53 PM               

Starship SN9 High-Altitude Flight Test

As early as Tuesday, February 2, the SpaceX team will attempt a high-altitude flight test of Starship serial number 9 (SN9) – the second high-altitude suborbital flight test of a Starship prototype from our site in Cameron County, Texas.

Similar to the high-altitude flight test of Starship serial number 8 (SN8), SN9 will be powered through ascent by three Raptor engines, each shutting down in sequence prior to the vehicle reaching apogee – approximately 10 km in altitude. SN9 will perform a propellant transition to the internal header tanks, which hold landing propellant, before reorienting itself for reentry and a controlled aerodynamic descent.

The Starship prototype will descend under active aerodynamic control, accomplished by independent movement of two forward and two aft flaps on the vehicle. All four flaps are actuated by an onboard flight computer to control Starship's attitude during flight and enable precise landing at the intended location. SN9's Raptor engines will then reignite as the vehicle attempts a landing flip maneuver immediately before touching down on the landing pad adjacent to the launch mount.

A controlled aerodynamic descent with body flaps and vertical landing capability, combined with in-space refilling, are critical to landing Starship at destinations across the solar system where prepared surfaces or runways do not exist, and returning to Earth. This capability will enable a fully reusable transportation system designed to carry both crew and cargo on long-duration, interplanetary flights and help humanity return to the Moon, and travel to Mars and beyond.

There will be a live feed of the flight test that will start a few minutes prior to liftoff. Given the dynamic schedule of development testing, stay tuned to our social media channels for updates as we move toward SpaceX's second high-altitude flight test of Starship!

posted 02-03-2021 08:38 AM               

Completed test: Starship SN9

On Tuesday, February 2, Starship serial number 9 (SN9) completed SpaceX's second high-altitude flight test of a Starship prototype from our site in Cameron County, Texas.

Similar to the high-altitude flight test of Starship serial number 8 (SN8), SN9 was powered through ascent by three Raptor engines, each shutting down in sequence prior to the vehicle reaching apogee – approximately 10 kilometers in altitude. SN9 successfully performed a propellant transition to the internal header tanks, which hold landing propellant, before reorienting itself for reentry and a controlled aerodynamic descent.

The Starship prototype descended under active aerodynamic control, accomplished by independent movement of two forward and two aft flaps on the vehicle. All four flaps are actuated by an onboard flight computer to control Starship's attitude during flight and enable precise landing at the intended location. During the landing flip maneuver, one of the Raptor engines did not relight and caused SN9 to land at high speed and experience a RUD.

These test flights are all about improving our understanding and development of a fully reusable transportation system designed to carry both crew and cargo on long-duration, interplanetary flights and help humanity return to the Moon, and travel to Mars and beyond.

posted 03-03-2021 03:55 AM               

Starship SN10 High-Altitude Flight Test

As early as Wednesday, March 3, the SpaceX team will attempt a high-altitude flight test of Starship serial number 10 (SN10) – our third high-altitude suborbital flight test of a Starship prototype from SpaceX's site in Cameron County, Texas.

Similar to the high-altitude flight tests of Starship SN8 and SN9, SN10 will be powered through ascent by three Raptor engines, each shutting down in sequence prior to the vehicle reaching apogee – approximately 10 km in altitude. SN10 will perform a propellant transition to the internal header tanks, which hold landing propellant, before reorienting itself for reentry and a controlled aerodynamic descent.

The Starship prototype will descend under active aerodynamic control, accomplished by independent movement of two forward and two aft flaps on the vehicle. All four flaps are actuated by an onboard flight computer to control Starship's attitude during flight and enable precise landing at the intended location. SN10's Raptor engines will then reignite as the vehicle attempts a landing flip maneuver immediately before touching down on the landing pad adjacent to the launch mount.

A controlled aerodynamic descent with body flaps and vertical landing capability, combined with in-space refilling, are critical to landing Starship at destinations across the solar system where prepared surfaces or runways do not exist, and returning to Earth. This capability will enable a fully reusable transportation system designed to carry both crew and cargo on long-duration, interplanetary flights and help humanity return to the Moon, and travel to Mars and beyond.

posted 03-04-2021 03:42 AM               

Starship SN10 High-Altitude Flight Test

On Wednesday, March 3, Starship serial number (SN10) successfully completed SpaceX's third high-altitude flight test of a Starship prototype from our site in Cameron County, Texas.

Similar to the high-altitude flight tests of Starship SN8 and SN9, SN10 was powered through ascent by three Raptor engines, each shutting down in sequence prior to the vehicle reaching apogee – approximately 10 km in altitude. SN10 performed a propellant transition to the internal header tanks, which hold landing propellant, before reorienting itself for reentry and a controlled aerodynamic descent.

The Starship prototype descended under active aerodynamic control, accomplished by independent movement of two forward and two aft flaps on the vehicle. All four flaps were actuated by an onboard flight computer to control Starship's attitude during flight and enabled a precise landing at the intended location. SN10's Raptor engines reignited as the vehicle performed the landing flip maneuver immediately before successfully touching down on the landing pad!

As if the flight test was not exciting enough, SN10 experienced a rapid unscheduled disassembly shortly after landing. All in all a great day for the Starship teams – these test flights are all about improving our understanding and development of a fully reusable transportation system designed to carry both crew and cargo on long-duration interplanetary flights, and help humanity return to the Moon, and travel to Mars and beyond.

Congratulations to the entire Starship and SpaceX teams on the flight test!

posted 03-26-2021 12:56 PM               

Starship SN11 High-Altitude Flight Test

As early as Friday, March 26, the SpaceX team will attempt a high-altitude flight test of Starship serial number 11 (SN11) — our fourth high-altitude flight test of a Starship prototype from Starbase in Texas.

Similar to previous high-altitude flight tests of Starship, SN11 will be powered through ascent by three Raptor engines, each shutting down in sequence prior to the vehicle reaching apogee — approximately 10 km in altitude. SN11 will perform a propellant transition to the internal header tanks, which hold landing propellant, before reorienting itself for reentry and a controlled aerodynamic descent.

The Starship prototype will descend under active aerodynamic control, accomplished by independent movement of two forward and two aft flaps on the vehicle. All four flaps are actuated by an onboard flight computer to control Starship’s attitude during flight and enable precise landing at the intended location. SN11’s Raptor engines will then reignite as the vehicle attempts a landing flip maneuver immediately before touching down on the landing pad adjacent to the launch mount.

A controlled aerodynamic descent with body flaps and vertical landing capability, combined with in-space refilling, are critical to landing Starship at destinations across the solar system where prepared surfaces or runways do not exist, and returning to Earth. This capability will enable a fully reusable transportation system designed to carry both crew and cargo on long-duration, interplanetary flights and help humanity return to the Moon, and travel to Mars and beyond.

posted 03-31-2021 10:33 AM               

Starship SN11 High-Altitude Flight Test

On Tuesday, March 30, SpaceX launched its fourth high-altitude flight test of Starship from Starbase in Texas. Similar to previous high-altitude flight tests, Starship Serial Number 11 (SN11) was powered through ascent by three Raptor engines, each shutting down in sequence prior to the vehicle reaching apogee – approximately 10 km in altitude. SN11 performed a propellant transition to the internal header tanks, which hold landing propellant, before reorienting itself for reentry and a controlled aerodynamic descent.

Shortly after the landing burn started, SN11 experienced a rapid unscheduled disassembly. Teams will continue to review data and work toward our next flight test.

Test flights are all about improving our understanding and development of a fully reusable transportation system designed to carry both crew and cargo on long-duration interplanetary flights, and help humanity return to the Moon, and travel to Mars and beyond.

posted 05-06-2021 10:29 AM               

Starship SN15 Flight Test

On Wednesday, May 5, Starship serial number 15 (SN15) successfully completed SpaceX's fifth high-altitude flight test of a Starship prototype from Starbase in Texas.

Similar to previous high-altitude flight tests of Starship, SN15 was powered through ascent by three Raptor engines, each shutting down in sequence prior to the vehicle reaching apogee – approximately 10 km in altitude. SN15 performed a propellant transition to the internal header tanks, which hold landing propellant, before reorienting itself for reentry and a controlled aerodynamic descent.

The Starship prototype descended under active aerodynamic control, accomplished by independent movement of two forward and two aft flaps on the vehicle. All four flaps were actuated by an onboard flight computer to control Starship's attitude during flight and enabled precise landing at the intended location. SN15's Raptor engines reignited as the vehicle performed the landing flip maneuver immediately before touching down for a nominal landing on the pad.

These test flights of Starship are all about improving our understanding and development of a fully reusable transportation system designed to carry both crew and cargo on long-duration interplanetary flights, and help humanity return to the Moon, and travel to Mars and beyond.

Congratulations to the entire SpaceX team on SN15's successful flight and landing!

posted 06-13-2022 01:16 PM               

FAA Requires SpaceX to Take Over 75 Actions to Mitigate Environmental Impact of Planned Starship/Super Heavy Launches

The U.S. Department of Transportation's Federal Aviation Administration (FAA) will require SpaceX to take more than 75 actions to mitigate environmental impacts from its proposed plan to launch the Starship/Super Heavy vehicle from Boca Chica, Texas.

The actions are part of the agency's environmental review. The environmental review must be completed along with public safety, national security, and other analyses before a decision on whether to grant a launch license can be made. The license application is still pending.

After consultation with the U.S. Fish and Wildlife Service, there will be more advanced notice of launches to reduce how long State Highway 4 is closed during launch operations. The highway traverses Boca Chica Beach, Texas State Parks and the Lower Rio Grande National Wildlife Refuge. Closures will not be allowed on 18 identified holidays, and weekend restrictions are limited to no more than five weekends per year, ensuring robust access to the refuge and park throughout the calendar year. The FAA will also require real-time notifications when access restrictions begin, end or are cancelled.

Additional measures to address impacts to fish, wildlife and plants, and resources protected by the National Historic Preservation Act will be required. Some examples of these measures include:

• Ongoing monitoring of vegetation and wildlife by a qualified biologist;

• Ensuring notification of surrounding communities in advance about potential engine noise and sonic booms from launches;

• Coordinating with state or federal agencies to remove launch debris from sensitive habitats;

• Adjusting lighting at the launch complex to minimize impact on wildlife and the nearby beach.

The required actions are part of the FAA's Programmatic Environmental Assessment, Finding of No Significant Impact (FONSI), and Record of Decision (ROD). The documents are available at The SpaceX Starship Super Heavy Project at the Boca Chica Launch Site page.

The environmental review is one part of the FAA Launch Operator License application process. SpaceX also must meet FAA safety, risk, and financial responsibility requirements before a license is issued for any launch activities. The review was completed in accordance with the National Environmental Policy Act and all applicable laws, regulations, and agency guidance.

posted 04-11-2023 03:55 PM               

Starship Flight Test

The first integrated flight test of Starship is trending towards the third week of April, pending regulatory approval.

This will be the first flight test of a fully integrated Starship and Super Heavy rocket, a fully reusable transportation system designed to carry both crew and cargo to Earth orbit, help humanity return to the Moon, and travel to Mars and beyond. With a test such as this, success is measured by how much we can learn, which will inform and improve the probability of success in the future as SpaceX rapidly advances development of Starship.

To date, the SpaceX team has completed multiple sub-orbital flight tests of Starship's upper stage from Starbase, successfully demonstrating an unprecedented approach to controlled flight. These flight tests helped validate the vehicle's design, proving Starship can fly through the subsonic phase of entry before re-lighting its engines and flipping itself to a vertical configuration for landing.

In addition to the testing of Starship's upper stage, the team has conducted numerous tests of the Super Heavy rocket, which include the increasingly complex static fires that led to a full-duration 31 Raptor engine test – the largest number of simultaneous rocket engine ignitions in history. The team has also constructed the world's tallest rocket launch and catch tower. At 146 meters, or nearly 500 feet tall, the launch and catch tower is designed to support vehicle integration, launch, and catch of the Super Heavy rocket booster. For the first flight test, the team will not attempt a vertical landing of Starship or a catch of the Super Heavy booster.

As we venture into new territory, we continue to appreciate all of the support and encouragement we have received from those who share our vision of a future where humanity is out exploring among the stars!

posted 04-20-2023 09:45 AM               

SpaceX launches Starship rocket on first test flight, explodes mid-air

Lifting off on its first fully-integrated test flight, a SpaceX rocket has become the largest and most-powerful launch vehicle to leave the ground — even with it breaking apart and exploding just four minutes into its flight.

After a brief hold at T-40 seconds to make last minute pressurization checks, the company's Super Heavy booster ignited its 30 out of its 33 methane-fueled Raptor rocket engines at 8:33 a.m. CDT (1333 GMT) Thursday (April 20), lifting it and its Starship vehicle off its mount at SpaceX's Starbase facility in Boca Chica, Texas. The launch was the first flight of the Super Heavy and Starship as used together.

The Super Heavy and Starship reached "Max Q," the moment of peak mechanical stress on the vehicle, about a minute and 20 seconds into flight, with two more of its engines having shut off early. Almost a minute and a half later, the Super Heavy was to cut off its engines and drop away from Starship, but the separation did not occur. Instead, the entire vehicle began to tumble, leading to the flight termination system being commanded for both Starship and Super Heavy.

posted 11-03-2023 04:02 PM               

Starship's Second Flight Test

The second flight test of a fully integrated Starship could launch as soon as Nov. 18.

Starship's first flight test provided numerous lessons learned that directly contributed to several upgrades to both the vehicle and ground infrastructure to improve the probability of success on future flights. The second flight test will debut a hot-stage separation system and a new electronic Thrust Vector Control (TVC) system for Super Heavy Raptor engines, in addition to reinforcements to the pad foundation and a water-cooled steel flame deflector, among many other enhancements.

This rapid iterative development approach has been the basis for all of SpaceX's major innovative advancements, including Falcon, Dragon, and Starlink. Recursive improvement is essential as we work to build a fully reusable transportation system capable of carrying both crew and cargo to Earth orbit, help humanity return to the Moon, and ultimately travel to Mars and beyond.

posted 11-18-2023 09:19 AM               

SpaceX Starship reaches space on second test flight, but then is lost

The world's largest and most powerful rocket to leave the ground flew a mostly-successful test flight on what was only its second launch.

SpaceX ignited the 33 engines at the base of its integrated Starship and Super Heavy vehicle on Saturday (Nov. 18), seven months after its first test flight ended just four minutes into flight. This time, the launch at 7:02 a.m. CST (8:02 a.m. EST or 1302 GMT) from SpaceX's Starbase facility in Boca Chica, Texas, continued beyond stage separation, with Starship almost reaching its near-orbital velocity.

posted 11-21-2023 09:34 AM               

Starship's Second Flight Test

Starship returned to integrated flight testing with its second launch from Starbase in Texas. While it didn't happen in a lab or on a test stand, it was absolutely a test. What we did with this second flight will provide invaluable data to continue rapidly developing Starship.

On November 18, 2023, Starship successfully lifted off at 7:02 a.m. CT from Starbase in Texas and achieved a number of major milestones:

• All 33 Raptor engines on the Super Heavy Booster started up successfully and, for the first time, completed a full-duration burn during ascent.

• Starship executed a successful hot-stage separation, powering down all but three of Super Heavy's Raptor engines and successfully igniting the six second stage Raptor engines before separating the vehicles. This was the first time this technique has been done successfully with a vehicle of this size.

• Following separation, the Super Heavy booster successfully completed its flip maneuver and initiated the boostback burn before it experienced a rapid unscheduled disassembly. The vehicle breakup occurred more than three and a half minutes into the flight at an altitude of ~90 km over the Gulf of Mexico.

• Starship's six second stage Raptor engines all started successfully and powered the vehicle to an altitude of ~150 km and a velocity of ~24,000 km/h, becoming the first Starship to reach outer space and nearly completing its full-duration burn.

• The flight test's conclusion came when telemetry was lost near the end of second stage burn prior to engine cutoff after more than eight minutes of flight. The team verified a safe command destruct was appropriately triggered based on available vehicle performance data.

• The water-cooled flame deflector and other pad upgrades performed as expected, requiring minimal post-launch work to be ready for upcoming vehicle tests and the next integrated flight test.

With a test like this, success comes from what we learn, and this flight test will help us improve Starship's reliability as SpaceX seeks to make life multiplanetary. Data review is ongoing as we look for improvements to make for the next flight. The team at Starbase is already working final preparations on the vehicles slated for use in Starship's third flight test, with Ship and Booster static fires coming up next.

Thank you to our customers, Cameron County, spaceflight fans, and the wider community for the continued support and encouragement. And congratulations to the entire SpaceX team on an exciting second flight test of Starship!

posted 02-26-2024 05:34 PM               

Building on the Success of Starship's Second Flight Test

The second flight test of Starship and Super Heavy achieved a number of important milestones as we continue to advance the capabilities of the most powerful launch system ever developed.

On November 18, 2023, Starship successfully lifted off at 7:02 a.m. CT from Starbase in Texas. All 33 Raptor engines on the Super Heavy Booster started up successfully and, for the first time, completed a full-duration burn during ascent. Starship then executed a successful hot-stage separation, the first time this technique has been done successfully with a vehicle of this size.

Following stage separation, Super Heavy initiated its boostback burn, which sends commands to 13 of the vehicle's 33 Raptor engines to propel the rocket toward its intended landing location. During this burn, several engines began shutting down before one engine failed energetically, quickly cascading to a rapid unscheduled disassembly (RUD) of the booster. The vehicle breakup occurred more than three and a half minutes into the flight at an altitude of ~90 km over the Gulf of Mexico.

The most likely root cause for the booster RUD was determined to be filter blockage where liquid oxygen is supplied to the engines, leading to a loss of inlet pressure in engine oxidizer turbopumps that eventually resulted in one engine failing in a way that resulted in loss of the vehicle. SpaceX has since implemented hardware changes inside future booster oxidizer tanks to improve propellant filtration capabilities and refined operations to increase reliability.

At vehicle separation, Starship's upper stage successfully lit all six Raptor engines and flew a normal ascent until approximately seven minutes into the flight, when a planned vent of excess liquid oxygen propellant began. Additional propellant had been loaded on the spacecraft before launch in order to gather data representative of future payload deploy missions and needed to be disposed of prior to reentry to meet required propellant mass targets at splashdown.

A leak in the aft section of the spacecraft that developed when the liquid oxygen vent was initiated resulted in a combustion event and subsequent fires that led to a loss of communication between the spacecraft's flight computers. This resulted in a commanded shut down of all six engines prior to completion of the ascent burn, followed by the Autonomous Flight Safety System detecting a mission rule violation and activating the flight termination system, leading to vehicle breakup. The flight test's conclusion came when the spacecraft was as at an altitude of ~150 km and a velocity of ~24,000 km/h, becoming the first Starship to reach outer space.

SpaceX has implemented hardware changes on upcoming Starship vehicles to improve leak reduction, fire protection, and refined operations associated with the propellant vent to increase reliability. The previously planned move from a hydraulic steering system for the vehicle's Raptor engines to an entirely electric system also removes potential sources of flammability.

The water-cooled flame deflector and other pad upgrades made after Starship's first flight test performed as expected, requiring minimal post-launch work to be ready for vehicle tests and the next integrated flight test.

Following the flight test, SpaceX led the investigation efforts with oversight from the FAA and participation from NASA, and the National Transportation and Safety Board.

Upgrades derived from the flight test will debut on the next Starship and Super Heavy vehicles to launch from Starbase on Flight 3. SpaceX is also implementing planned performance upgrades, including the debut of a new electronic Thrust Vector Control system for Starship's upper stage Raptor engines and improving the speed of propellant loading operations prior to launch.

More Starships are ready to fly, putting flight hardware in a flight environment to learn as quickly as possible. Recursive improvement is essential as we work to build a fully reusable launch system capable of carrying satellites, payloads, crew, and cargo to a variety of orbits and Earth, lunar, or Martian landing sites.

posted 03-06-2024 12:33 PM               

Starship's Third Flight Test

The third flight test of Starship could launch as soon as March 14, pending regulatory approval.

Starship’s second flight test achieved a number of major milestones and provided invaluable data to continue rapidly developing Starship. Each of these flight tests continue to be just that: a test. They aren’t occurring in a lab or on a test stand, but are putting flight hardware in a flight environment to maximize learning.

The third flight test aims to build on what we’ve learned from previous flights while attempting a number of ambitious objectives, including the successful ascent burn of both stages, opening and closing Starship’s payload door, a propellant transfer demonstration during the upper stage’s coast phase, the first ever re-light of a Raptor engine while in space, and a controlled reentry of Starship. It will also fly a new trajectory, with Starship targeted to splashdown in the Indian Ocean. This new flight path enables us to attempt new techniques like in-space engine burns while maximizing public safety.

This rapid iterative development approach has been the basis for all of SpaceX’s major innovative advancements, including Falcon, Dragon, and Starlink. Recursive improvement is essential as we work to build a fully reusable transportation system capable of carrying both crew and cargo to Earth orbit, help humanity return to the Moon, and ultimately travel to Mars and beyond.

posted 03-14-2024 04:25 PM               

SpaceX Starship coasts then crashes on mostly-successful third flight test

SpaceX's Starship flew faster and further than it has ever gone before, but just missed achieving a fully successful third test flight when it was lost during its reentry into Earth's atmosphere.

The world's largest spacecraft and most powerful rocket to reach space, Starship and its Super Heavy booster flew a perfect ascent on Thursday (March 14). Lifting off from SpaceX's Starbase in Cameron County, Texas at 8:25 a.m. CDT (1325 GMT), the towering vehicle soared well beyond what it reached on the second of its test flights four months ago.

posted 03-14-2024 05:31 PM               

Starship's Third Flight Test

Starship returned to integrated flight testing with its third launch from Starbase in Texas. While it didn't happen in a lab or on a test stand, it was absolutely a test. What we achieved on this flight will provide invaluable data to continue rapidly developing Starship.

On March 14, 2024, Starship successfully lifted off at 8:25 a.m. CT from Starbase in Texas and went on to accomplish several major milestones and firsts:

• For the second time, all 33 Raptor engines on the Super Heavy Booster started up successfully and completed a full-duration burn during ascent.

• Starship executed its second successful hot-stage separation, powering down all but three of Super Heavy's Raptor engines and successfully igniting the six second stage Raptor engines before separating the vehicles.

• Following separation, the Super Heavy booster successfully completed its flip maneuver and completed a full boostback burn to send it towards its splashdown point in the Gulf of Mexico.

• Super Heavy successfully lit several engines for its first ever landing burn before the vehicle experienced a RUD (that's SpaceX-speak for "rapid unscheduled disassembly"). The booster's flight concluded at approximately 462 meters in altitude and just under seven minutes into the mission.

• Starship's six second stage Raptor engines all started successfully and powered the vehicle to its expected orbit, becoming the first Starship to complete its full-duration ascent burn.

• While coasting, Starship accomplished several of the flight test's additional objectives, including the opening and closing of its payload door (aka the pez dispenser,) and initiating a propellant transfer demonstration. Starship did not attempt its planned on-orbit relight of a single Raptor engine due to vehicle roll rates during coast. Results from these demonstrations will come after postflight data review is complete.

• Starship went on to experience its first ever entry from space, providing valuable data on heating and vehicle control during hypersonic reentry. Live views of entry were made possible by Starlink terminals operating on Starship.

• The flight test's conclusion came during entry, with the last telemetry signals received via Starlink from Starship at approximately 49 minutes into the mission.

While our team reviews the data collected from this flight, Starship and Super Heavy vehicles are preparing for upcoming flights as we seek to increase our launch cadence throughout the year.

This rapid iterative development approach has been the basis for all of SpaceX's major innovative advancements, including Falcon, Dragon, and Starlink. Recursive improvement is essential as we work to build a fully reusable transportation system capable of carrying both crew and cargo to Earth orbit, help humanity return to the Moon, and ultimately travel to Mars and beyond.

Thank you to our customers, Cameron County, spaceflight fans, and the wider community for the continued support and encouragement. And congratulations to the entire SpaceX team on an exciting third flight test of Starship!

posted 05-27-2024 08:46 AM               

Starship's Fourth Flight Test

The fourth flight test of Starship could launch as soon as June 5, pending regulatory approval.

The launch window will open as early as 7 a.m. CDT (1200 GMT). As is the case with all developmental testing, the schedule is dynamic and likely to change.

Starship’s third flight test made tremendous strides towards a future of rapidly reliable reusable rockets. The test completed several exciting firsts, including the first Starship reentry from space, the first ever opening and closing of Starship’s payload door in space, and a successful propellant transfer demonstration. This last test provided valuable data for eventual ship-to-ship propellant transfers that will enable missions like returning astronauts to the Moon under NASA’s Artemis program.

The fourth flight test turns our focus from achieving orbit to demonstrating the ability to return and reuse Starship and Super Heavy. The primary objectives will be executing a landing burn and soft splashdown in the Gulf of Mexico with the Super Heavy booster, and achieving a controlled entry of Starship.

To accomplish this, several software and hardware upgrades have been made to increase overall reliability and address lessons learned from Flight 3. The SpaceX team will also implement operational changes, including the jettison of the Super Heavy’s hot-stage following boostback to reduce booster mass for the final phase of flight.

Flight 4 will fly a similar trajectory as the previous flight test, with Starship targeted to splashdown in the Indian Ocean. This flight path does not require a deorbit burn for reentry, maximizing public safety while still providing the opportunity to meet our primary objective of a controlled Starship reentry.

The fourth flight of Starship will aim to bring us closer to the rapidly reusable future on the horizon. We’re continuing to rapidly develop Starship, putting flight hardware in a flight environment to learn as quickly as possible as we build a fully reusable transportation system designed to carry crew and cargo to Earth orbit, the Moon, Mars and beyond.

posted 06-06-2024 11:27 AM               

SpaceX Starship successfully returns from space on fourth test flight

Proving what goes up can come down, SpaceX accoplished its first fully-complete test flight of its Starship on Thursday (June 6), returning both the booster and spacecraft to splashdowns.

The successful hour-long suborbital flight came on SpaceX's fourth attempt to launch Starship, reach space and return to Earth intact. The prior test in March accomplished the ascent but did not survive reentry.

posted 09-10-2024 10:56 AM               

Starships Are Meant to Fly

SpaceX was founded in 2002 to expand access to outer space. Not just for government or traditional satellite operators, but for new participants around the globe. Today, we're flying at an unprecedented pace as the world's most active launch services provider. SpaceX is safely and reliably launching astronauts, satellites, and other payloads on missions benefiting life on Earth and preparing humanity for our ultimate goal: to explore other planets in our solar system and beyond.

Starship is paramount to making that sci-fi future, along with a growing number of U.S. national priorities, a reality. It is the largest and most powerful space transportation system ever developed, and its fully and rapidly reusable design will exponentially increase humanity's ability to access and utilize outer space. Full reusability has been an elusive goal throughout the history of spaceflight, piling innumerable technical challenges on what is already the most difficult engineering pursuit in human existence. It is rocket science, on ludicrous mode.

Every flight of Starship has made tremendous progress and accomplished increasingly difficult test objectives, making the entire system more capable and more reliable. Our approach of putting flight hardware in the flight environment as often as possible maximizes the pace at which we can learn recursively and operationalize the system. This is the same approach that unlocked reuse on our Falcon fleet of rockets and made SpaceX the leading launch provider in the world today.

To do this and do it rapidly enough to meet commitments to national priorities like NASA's Artemis program, Starships need to fly. The more we fly safely, the faster we learn; the faster we learn, the sooner we realize full and rapid rocket reuse. Unfortunately, we continue to be stuck in a reality where it takes longer to do the government paperwork to license a rocket launch than it does to design and build the actual hardware. This should never happen and directly threatens America's position as the leader in space.

Flight 5

The Starship and Super Heavy vehicles for Flight 5 have been ready to launch since the first week of August. The flight test will include our most ambitious objective yet: attempt to return the Super Heavy booster to the launch site and catch it in mid-air.

This will be a singularly novel operation in the history of rocketry. SpaceX engineers have spent years preparing and months testing for the booster catch attempt, with technicians pouring tens of thousands of hours into building the infrastructure to maximize our chances for success. Every test comes with risk, especially those seeking to do something for the first time. SpaceX goes to the maximum extent possible on every flight to ensure that while we are accepting risk to our own hardware, we accept no compromises when it comes to ensuring public safety.

It's understandable that such a unique operation would require additional time to analyze from a licensing perspective. Unfortunately, instead of focusing resources on critical safety analysis and collaborating on rational safeguards to protect both the public and the environment, the licensing process has been repeatedly derailed by issues ranging from the frivolous to the patently absurd. At times, these roadblocks have been driven by false and misleading reporting, built on bad-faith hysterics from online detractors or special interest groups who have presented poorly constructed science as fact.

We recently received a launch license date estimate of late November from the FAA, the government agency responsible for licensing Starship flight tests. This is a more than two-month delay to the previously communicated date of mid-September. This delay was not based on a new safety concern, but instead driven by superfluous environmental analysis. The four open environmental issues are illustrative of the difficulties launch companies face in the current regulatory environment for launch and reentry licensing.

Steel and Water

Starship's water-cooled steel flame deflector has been the target of false reporting, wrongly alleging that it pollutes the environment or has operated completely independent of regulation. This narrative omits fundamental facts that have either been ignored or intentionally misinterpreted.

At no time did SpaceX operate the deflector without a permit. SpaceX was operating in good faith under a Multi-Sector General Permit to cover deluge operations under the supervision of the Texas Commission on Environmental Quality (TCEQ). SpaceX worked closely with TCEQ to incorporate numerous mitigation measures prior to its use, including the installation of retention basins, construction of protective curbing, plugging of outfalls during operations, and use of only potable (drinking) water that does not come into contact with any industrial processes. A permit number was assigned and made active in July 2023. TCEQ officials were physically present at the first testing of the deluge system and given the opportunity to observe operations around launch.

The water-cooled steel flame deflector does not spray pollutants into the surrounding environment. Again, it uses literal drinking water. Outflow water has been sampled after every use of the system and consistently shows negligible traces of any contaminants, and specifically, that all levels have remained below standards for all state permits that would authorize discharge. TCEQ, the FAA, and the U.S. Fish and Wildlife Service evaluated the use of the system prior to its initial use, and during tests and launch, and determined it would not cause environmental harm.

When the EPA issued its Administrative Order in March 2024, it was done before seeking a basic understanding of the facts of the water-cooled steel flame deflector's operation or acknowledgement that we were operating under the Texas Multi-Sector General Permit. After meeting with the EPA—during which the EPA stated their intent was not to stop testing, preparation, or launch operations—it was decided that SpaceX should apply for an individual discharge permit. Despite our previous permitting, which was done in coordination with TCEQ, and our operation having little to nothing in common with industrial waste discharges covered by individual permits, we applied for an individual permit in July 2024.

The subsequent fines levied on SpaceX by TCEQ and the EPA are entirely tied to disagreements over paperwork. We chose to settle so that we can focus our energy on completing the missions and commitments that we have made to the U.S. government, commercial customers, and ourselves. Paying fines is extremely disappointing when we fundamentally disagree with the allegations, and we are supported by the fact that EPA has agreed that nothing about the operation of our flame deflector will need to change. Only the name of the permit has changed.

Good Steward

No launch site operates in a vacuum. As we have built up capacity to launch and developed new sites across the country, we have always been committed to public safety and mitigating impacts to the environment. At Starbase, we implement an extensive list of mitigations developed with federal and state agencies, many of which require year-round monitoring and frequent updates to regulators and consultation with independent biological experts. The list of measures we take just for operations in Texas is over two hundred items long, including constant monitoring and sampling of the short and long-term health of local flora and fauna. The narrative that we operate free of, or in defiance of, environmental regulation is demonstrably false.

Environmental regulations and mitigations serve a noble purpose, stemming from common-sense safeguards to enable progress while preventing undue impact to the environment. However, with the licensing process being drawn out for Flight 5, we find ourselves delayed for unreasonable and exasperating reasons.

On Starship's fourth flight, the top of the Super Heavy booster, commonly known as the hot-stage, was jettisoned to splash down on its own in the Gulf of Mexico. The hot-stage plays an important part in protecting the booster during separation from Starship's upper stage before detaching during the booster's return flight. This operation was analyzed thoroughly ahead of Starship's fourth flight, specifically focused on any potential impact to protected marine species. Given the distribution of marine animals in the specific landing area and comparatively small size of the hot-stage, the probability of a direct impact is essentially zero. This is something previously determined as standard practice by the FAA and the National Marine Fisheries Service for the launch industry at large, which disposes of rocket stages and other hardware in the ocean on every single launch, except of course, for our own Falcon rockets which land and are reused. The only proposed modification for Starship's fifth flight is a marginal change in the splashdown location of the hot-stage which produces no increase in likelihood for impacting marine life. Despite this, the FAA leadership approved a 60-day consultation with the National Marine Fisheries Service. Furthermore, the mechanics of these types of consultations outline that any new questions raised during that time can reset the 60-day counter, over and over again. This single issue, which was already exhaustively analyzed, could indefinitely delay launch without addressing any plausible impact to the environment.

Another unique aspect to Starship's fifth flight and a future return and catch of the Super Heavy booster will be the audible sonic booms in the area around the return location. As we've previously noted, the general impact to those in the surrounding area of a sonic boom is the brief thunder-like noise. The FAA, in consultation with the U.S. Fish and Wildlife Service, evaluated sonic booms from the landing of the Super Heavy and found no significant impacts to the environment. Although animals exposed to the sonic booms may be briefly startled, numerous prior studies have shown sonic booms of varying intensity have no detrimental effect on wildlife. Despite this documented evidence, the FAA leadership approved an additional 60-day consultation with U.S. Fish and Wildlife as a slightly larger area could experience a sonic boom.

Lastly, the area around Starbase is well known as being host to various protected birds. SpaceX already has extensive mitigations in place and has been conducting biological monitoring for birds near Starbase for nearly 10 years. The protocol for the monitoring was developed with U.S. Fish and Wildlife service, and is conducted by professional, qualified, independent biologists. To date, the monitoring has not shown any population-level impacts to monitored bird populations, despite unsubstantiated claims to the contrary that the authors themselves later amended. Even though Starship's fifth flight will take place outside of nesting season, SpaceX is still implementing additional mitigations and monitoring to minimize impacts to wildlife, including infrared drone surveillance pre- and post-launch to track nesting presence. We are also working with USFWS experts to assess deploying special protection measures prior to launches during bird nesting season.

SpaceX is committed to minimizing impact and enhancing the surrounding environment where possible. One of our proudest partnerships in South Texas is with Sea Turtle Inc, a local nonprofit dedicated to sea turtle conservation. SpaceX assists with finding and transporting injured sea turtles to their facilities for treatment. SpaceX has also officially adopted Boca Chica Beach through the Texas General Lands Office Adopt a Beach Program, with the responsibility of picking up litter and promoting a litter-free environment. SpaceX sponsors and participates in quarterly beach cleanups as well as quarterly State Highway 4 cleanups. SpaceX has removed hundreds of pounds of trash from the beach and State Highway 4 over the last several years. SpaceX also fosters environmental education at the local level by hosting school tours as well as an Annual Environmental Education Day with Texas Parks and Wildlife, U.S. Fish and Wildlife Service, National Park Service, and Sea Turtle Inc.

To Fly

Despite a small, but vocal, minority of detractors trying to game the regulatory system to obstruct and delay the development of Starship, SpaceX remains committed to the mission at hand. Our thousands of employees work tirelessly because they believe that unlimited opportunities and tangible benefits for life on Earth are within reach if humanity can fundamentally advance its ability to access space. This is why we're committed to continually pushing the boundaries of spaceflight, with a relentless focus on safety and reliability.

Because life will be multiplanetary, and will be made possible by the farsighted strides we take today.

posted 10-07-2024 06:45 PM               

Starship's Fifth Flight Test

Flight 4 was a tremendous success. A fully successful ascent was followed by the first ever booster soft-landing in the Gulf of Mexico and Starship making it through a brilliant reentry, before its own landing burn and splashdown in the Indian Ocean.

The fifth flight test of Starship will aim to take another step towards full and rapid reusability. The primary objectives will be attempting the first ever return to launch site and catch of the Super Heavy booster and another Starship reentry and landing burn, aiming for an on-target splashdown of Starship in the Indian Ocean.

Extensive upgrades ahead of this flight test have been made to hardware and software across Super Heavy, Starship, and the launch and catch tower infrastructure at Starbase. SpaceX engineers have spent years preparing and months testing for the booster catch attempt, with technicians pouring tens of thousands of hours into building the infrastructure to maximize our chances for success. We accept no compromises when it comes to ensuring the safety of the public and our team, and the return will only be attempted if conditions are right.

Thousands of distinct vehicle and pad criteria must be met prior to a return and catch attempt of the Super Heavy booster, which will require healthy systems on the booster and tower and a manual command from the mission's Flight Director. If this command is not sent prior to the completion of the boostback burn, or if automated health checks show unacceptable conditions with Super Heavy or the tower, the booster will default to a trajectory that takes it to a landing burn and soft splashdown in the Gulf of Mexico.

The returning booster will slow down from supersonic speeds, resulting in audible sonic booms in the area around the landing zone. Generally, the only impact to those in the surrounding area of a sonic boom is the brief thunder-like noise with variables like weather and distance from the return site determining the magnitude experienced by observers.

Starship will fly a similar trajectory as the previous flight test with splashdown targeted in the Indian Ocean. This flight path does not require a deorbit burn for reentry, maximizing public safety while still providing the opportunity to meet our primary objective of a controlled reentry and soft water landing of Starship.

One of the key upgrades on Starship ahead of flight was a complete rework of its heatshield, with SpaceX technicians spending more than 12,000 hours replacing the entire thermal protection system with newer-generation tiles, a backup ablative layer, and additional protections between the flap structures. This massive effort, along with updates to the ship's operations and software for reentry and landing burn, will look to improve upon the previous flight and bring Starship to a soft splashdown at the target area in the Indian Ocean.

With each flight building on the learnings from the last, testing improvements in hardware and operations across every facet of Starship, we're on the verge of demonstrating techniques fundamental to Starship's fully and rapidly reusable design. By continuing to push our hardware in a flight environment, and doing so as safely and frequently as possible, we'll rapidly bring Starship online and revolutionize humanity's ability to access space.

posted 10-13-2024 08:51 AM               

SpaceX catches rocket returning to launch pad on fifth Starship test flight

For the first time, a rocket returning to Earth after its launch has been caught while descending to the same pad from where it lifted off.

SpaceX on Sunday (Oct. 13) achieved the recovery feat on the fifth integrated test of its Starship spacecraft and Super Heavy booster. The nearly 400-foot-tall (121-meter), steel-skinned vehicle sent the Starship into space at 8:25 a.m. EDT (1225 GMT or 7:25 a.m. CDT local time) before the Super Heavy relit some of its 33 engines to fly back to SpaceX's Starbase production and launch facility in Texas.

As Super Heavy lowered itself next to its launch tower, two large mechanical arms pinched the rocket's body, catching it like a pair of chopsticks.

posted 11-06-2024 12:49 PM               

Starship's Sixth Flight Test

Starship's fifth flight test was a seminal moment in iterating towards a fully and rapidly reusable launch system. On the first attempt, the Super Heavy booster successfully returned to the launch site and was caught by the chopstick arms of the launch and catch tower at Starbase. Starship's upper stage went on to demonstrate several improvements, resulting in a controlled entry and high accuracy splashdown at the targeted area in the Indian Ocean.

The next Starship flight test aims to expand the envelope on ship and booster capabilities and get closer to bringing reuse of the entire system online. Objectives include the booster once again returning to the launch site for catch, reigniting a ship Raptor engine while in space, and testing a suite of heatshield experiments and maneuvering changes for ship reentry and descent over the Indian Ocean.

The success of the first catch attempt demonstrated the design feasibility while providing valuable data to continue improving hardware and software performance. Hardware upgrades for this flight add additional redundancy to booster propulsion systems, increase structural strength at key areas, and shorten the timeline to offload propellants from the booster following a successful catch. Mission designers also updated software controls and commit criteria for the booster's launch and return.

Analogous to the fifth flight test, distinct vehicle and pad criteria must be met prior to a return and catch of the Super Heavy booster, which will require healthy systems on the booster and tower and a final manual command from the mission's Flight Director. If this command is not sent prior to the completion of the boostback burn, or if automated health checks show unacceptable conditions with Super Heavy or the tower, the booster will default to a trajectory that takes it to a landing burn and soft splashdown in the Gulf of Mexico. We accept no compromises when it comes to ensuring the safety of the public and our team, and the return will only take place if conditions are right.

The returning booster will slow down from supersonic speeds, resulting in audible sonic booms in the area around the landing zone. Generally, the only impact to those in the surrounding area of a sonic boom is the brief thunder-like noise with variables like weather and distance from the return site determining the magnitude experienced by observers.

Starship's upper stage will fly the same suborbital trajectory as the previous flight test, with splashdown targeted in the Indian Ocean. An additional objective for this flight will be attempting an in-space burn using a single Raptor engine, further demonstrating the capabilities required to conduct a ship deorbit burn prior to orbital missions.

Several thermal protection experiments and operational changes will test the limits of Starship's capabilities and generate flight data to inform plans for ship catch and reuse. The flight test will assess new secondary thermal protection materials and will have entire sections of heat shield tiles removed on either side of the ship in locations being studied for catch-enabling hardware on future vehicles. The ship also will intentionally fly at a higher angle of attack in the final phase of descent, purposefully stressing the limits of flap control to gain data on future landing profiles. Finally, adjusting the flight's launch window to the late afternoon at Starbase will enable the ship to reenter over the Indian Ocean in daylight, providing better conditions for visual observations.

Future ships, starting with the vehicle planned for seventh flight test, will fly with significant upgrades including redesigned forward flaps, larger propellant tanks, and the latest generation tiles and secondary thermal protection layers as we continue to iterate towards a fully reusable heat shield. Learnings from this and subsequent flight tests will continue to make the entire Starship system more reliable as we close in on full and rapid reusability.

posted 01-03-2025 04:37 PM               

Starship's Seventh Flight Test

The seventh flight test of Starship is preparing to launch.

The upcoming flight test will launch a new generation ship with significant upgrades, attempt Starship's first payload deployment test, fly multiple reentry experiments geared towards ship catch and reuse, and launch and return the Super Heavy booster.

A block of planned upgrades to the Starship upper stage will debut on this flight test, bringing major improvements to reliability and performance. The vehicle's forward flaps have been reduced in size and shifted towards the vehicle tip and away from the heat shield, significantly reducing their exposure to reentry heating while simplifying the underlying mechanisms and protective tiling. Redesigns to the propulsion system, including a 25 percent increase in propellant volume, the vacuum jacketing of feedlines, a new fuel feedline system for the vehicle's Raptor vacuum engines, and an improved propulsion avionics module controlling vehicle valves and reading sensors, all add additional vehicle performance and the ability to fly longer missions. The ship's heat shield will also use the latest generation tiles and includes a backup layer to protect from missing or damaged tiles.

The vehicle's avionics underwent a complete redesign, adding additional capability and redundancy for increasingly complex missions like propellant transfer and ship return to launch site. Avionics upgrades include a more powerful flight computer, integrated antennas which combine Starlink, GNSS, and backup RF communication functions into each unit, redesigned inertial navigation and star tracking sensors, integrated smart batteries and power units that distribute data and 2.7MW of power across the ship to 21 high-voltage actuators, and an increase to more than 30 vehicle cameras giving engineers insight into hardware performance across the vehicle during flight. With Starlink, the vehicle is capable of streaming more than 120 Mbps of real-time high-definition video and telemetry in every phase of flight, providing invaluable engineering data to rapidly iterate across all systems.

While in space, Starship will deploy 10 Starlink simulators, similar in size and weight to next-generation Starlink satellites as the first exercise of a satellite deploy mission. The Starlink simulators will be on the same suborbital trajectory as Starship, with splashdown targeted in the Indian Ocean. A relight of a single Raptor engine while in space is also planned.

The flight test will include several experiments focused on ship return to launch site and catch. On Starship's upper stage, a significant number of tiles will be removed to stress-test vulnerable areas across the vehicle. Multiple metallic tile options, including one with active cooling, will test alternative materials for protecting Starship during reentry. On the sides of the vehicle, non-structural versions of ship catch fittings are installed to test the fittings' thermal performance, along with a smoothed and tapered edge of the tile line to address hot spots observed during reentry on Starship's sixth flight test. The ship's reentry profile is being designed to intentionally stress the structural limits of the flaps while at the point of maximum entry dynamic pressure. Finally, several radar sensors will be tested on the tower chopsticks with the goal of increasing the accuracy when measuring distances between the chopsticks and a returning vehicle during catch.

The Super Heavy booster will utilize flight proven hardware for the first time, reusing a Raptor engine from the booster launched and returned on Starship's fifth flight test. Hardware upgrades to the launch and catch tower will increase reliability for booster catch, including protections to the sensors on the tower chopsticks that were damaged at launch and resulted in the booster offshore divert on Starship's previous flight test.

Distinct vehicle and pad criteria must be met prior to a return and catch of the Super Heavy booster, requiring healthy systems on the booster and tower and a final manual command from the mission's Flight Director. If this command is not sent prior to the completion of the boostback burn, or if automated health checks show unacceptable conditions with Super Heavy or the tower, the booster will default to a trajectory that takes it to a landing burn and soft splashdown in the Gulf of Mexico. We accept no compromises when it comes to ensuring the safety of the public and our team, and the return will only take place if conditions are right.

The returning booster will slow down from supersonic speeds, resulting in audible sonic booms in the area around the landing zone. Generally, the only impact to those in the surrounding area of a sonic boom is the brief thunder-like noise with variables like weather and distance from the return site determining the magnitude experienced by observers.

This new year will be transformational for Starship, with the goal of bringing reuse of the entire system online and flying increasingly ambitious missions as we iterate towards being able to send humans and cargo to Earth orbit, the Moon, and Mars.

posted 01-17-2025 07:42 PM               

Starship's Seventh Flight Test

The first Starship flight test of 2025 flew with ambitious goals: seeking to repeat our previous success of launching and catching the world's most powerful launch vehicle while putting a redesigned and upgraded Starship through a rigorous set of flight demonstrations.

It served as a reminder that development testing, by definition, can be unpredictable.

On its seventh flight test, Starship successfully lifted off from Starbase in Texas at 4:37 p.m. CT on Thursday, January 16. At launch, all 33 Raptor engines powered the Super Heavy booster and Starship on a nominal ascent. Following a successful hot-stage separation, the booster successfully transitioned to its boostback burn, with 12 of the planned 13 Raptor engines relighting, to begin its return to the launch site.

Super Heavy then relit all 13 planned middle ring and center Raptor engines and performed its landing burn, including the engine that did not relight for boostback burn. The landing burn slowed Super Heavy down and maneuvered itself to the launch and catch tower arms, resulting in the second successful catch of a Super Heavy booster.

Following stage separation, the Starship upper stage successfully lit all six Raptor engines and performed its ascent burn to space. Prior to the burn's completion, telemetry was lost with the vehicle after approximately eight and a half minutes of flight. Initial data indicates a fire developed in the aft section of the ship, leading to a rapid unscheduled disassembly.

Starship flew within its designated launch corridor – as all U.S. launches do to safeguard the public both on the ground, on water and in the air. Any surviving pieces of debris would have fallen into the designated hazard area. If you believe you have identified a piece of debris, please do not attempt to handle or retrieve the debris directly. Instead, please contact your local authorities or the SpaceX Debris Hotline at 1-866-623-0234 or at recovery@spacex.com.

As always, success comes from what we learn, and this flight test will help us improve Starship's reliability as SpaceX seeks to make life multiplanetary. Data review is already underway as we seek out root cause. We will conduct a thorough investigation, in coordination with the FAA, and implement corrective actions to make improvements on future Starship flight tests.

The ship and booster for Starship's eighth flight test are built and going through prelaunch testing and preparing to fly as we continue a rapid iterative development process to build a fully and rapidly reusable space transportation system.

posted 02-24-2025 01:26 PM               

Starship's Eighth Flight Test

The eighth flight test of Starship is preparing to launch.

After completing the investigation into the loss of Starship early on its seventh flight test, several hardware and operational changes have been made to increase reliability of the upper stage. You can read the full summary of the mishap investigation here.

The upcoming flight will target objectives not reached on the previous test, including Starship's first payload deployment and multiple reentry experiments geared towards returning the upper stage to the launch site for catch. The flight also includes the launch, return, and catch of the Super Heavy booster.

Extensive upgrades to Starship's upper stage debuted on the previous flight test, focused on adding reliability and performance across all phases of flight. Starship's forward flaps have been upgraded to significantly reduce their exposure to reentry heating while simplifying the underlying mechanisms and protective tiling. Redesigns to the propulsion system, including a 25 percent increase in propellant volume over previous generations, add additional vehicle performance and the ability to fly longer duration missions. And the vehicle's avionics underwent a complete redesign, adding additional capability and redundancy for increasingly complex missions like propellant transfer and ship return to the launch site.

During the flight test, Starship will deploy four Starlink simulators, similar in size to next-generation Starlink satellites, as the first exercise of a satellite deploy mission. The Starlink simulators will be on the same suborbital trajectory as Starship and are expected to demise upon entry. A relight of a single Raptor engine while in space is also planned.

The flight test includes several experiments focused on enabling Starship's upper stage to return to the launch site. A significant number of tiles have been removed from Starship to stress-test vulnerable areas across the vehicle. Multiple metallic tile options, including one with active cooling, will test alternative materials for protecting Starship during reentry. On the sides of the vehicle, non-structural versions of Starship's catch fittings are installed to test the fittings' thermal performance, along with a section of the tile line receiving a smoothed and tapered edge to address hot spots observed during reentry on Starship's sixth flight test.

Starship's reentry profile is designed to intentionally stress the structural limits of the upper stage's rear flaps while at the point of maximum entry dynamic pressure. Finally, several radar sensors will once again be tested on the launch and catch tower's chopsticks with the goal of increasing the accuracy when measuring distances between the chopsticks and a returning vehicle.

The Super Heavy booster for this flight features upgraded avionics, including a more powerful flight computer, improved power and network distribution, and integrated smart batteries.

Distinct vehicle and pad criteria must be met prior to the return and catch of the Super Heavy booster, requiring healthy systems on the booster and tower and a final manual command from the mission's Flight Director. If this command is not sent prior to the completion of the boostback burn, or if automated health checks show unacceptable conditions with Super Heavy or the tower, the booster will default to a trajectory for a soft splashdown in the Gulf of America. We accept no compromises when it comes to ensuring the safety of the public and our team, and booster return will only take place if conditions are right.

The returning booster will slow down from supersonic speeds, resulting in audible sonic booms in the area around the landing zone. Generally, the only impact to those in the surrounding area of a sonic boom is the brief thunder-like noise with variables like weather and distance from the return site determining the magnitude experienced by observers.

Developmental testing by definition is unpredictable. But by putting flight hardware in a flight environment as frequently as possible, we're able to quickly learn and execute design changes as we seek to bring Starship online as a fully and rapidly reusable vehicle.

posted 03-06-2025 08:42 PM               

Starship's Eighth Flight Test

Starship's eighth flight test lifted off from Starbase in Texas at 5:30 p.m. CT on Thursday, March 6. The Super Heavy booster successfully lit its 33 Raptor engines and propelled Starship through a nominal first-stage ascent.

Approximately two and a half minutes into flight, the Super Heavy booster shutdown all but three of its Raptor engines as planned for hot-staging separation. Starship then successfully lit its six Raptor engines and separated from the Super Heavy booster to continue its ascent to space.

The Super Heavy booster then relit 11 of 13 planned Raptor engines and performed a boostback burn to return itself to the launch site. As Super Heavy approached the launch site, it relit 12 of the planned 13 engines at the start of its landing burn to successfully slow the booster down. The three center engines continued running to maneuver the booster to the launch and catch tower arms, resulting in the third successful catch of a Super Heavy booster.

Starship continued its ascent to its planned trajectory. Prior to the end of the ascent burn, an energetic event in the aft portion of Starship resulted in the loss of several Raptor engines. This in turn led to a loss of attitude control and ultimately a loss of communications with Starship. Final contact with Starship came approximately 9 minutes and 30 seconds after liftoff.

Starship flew within a designated launch corridor to safeguard the public both on the ground, on water, and in the air. Following the anomaly, SpaceX teams immediately began coordination with the FAA, ATO (air traffic control) and other safety officials to implement pre-planned contingency responses.

Any surviving debris would have fallen within the pre-planned Debris Response Area. There are no toxic materials present in the debris and no significant impacts expected to occur to marine species or water quality.

With a test like this, success comes from what we learn, and today's flight will help us improve Starship's reliability. We will conduct a thorough investigation, in coordination with the FAA, and implement corrective actions to make improvements on future Starship flight tests.

posted 05-23-2025 10:04 AM               

Fly. Learn. Repeat.

On March 6, 2025, Starship's eighth flight test successfully lifted off at 5:30 p.m. CT from Starbase in Texas. All 33 Raptor engines on the Super Heavy booster started up successfully and completed a full duration burn during ascent. After powering down all but the three center engines on Super Heavy, Starship ignited all six of its Raptor engines to separate in a hot-staging maneuver and continue its ascent to space.

The Super Heavy booster then relit 11 of 13 planned Raptor engines and performed a boostback burn to return itself to the launch site. Once there, it relit 12 of the planned 13 engines for its landing burn, including one of the engines that did not start up for the boostback burn. The three center engines continued running to maneuver the booster to the launch and catch tower arms, resulting in the third successful catch of a Super Heavy booster.

The most probable cause for engines not relighting during the boostback and landing burn phases was traced to torch ignition issues on the individual engines caused by thermal conditions local to the igniter. Post-flight testing was able to replicate the issue and engines on future flights will have additional insulation as mitigation.

Starship's upper stage flew along its expected trajectory following separation from the Super Heavy booster. Approximately five and a half minutes into its ascent burn, a flash was observed in the aft section of the vehicle near one of the center Raptor sea level engines followed by an energetic event that resulted in the loss of the engine. Immediately after, the remaining two center Raptor engines and one of the Raptor vacuum engines shut down and vehicle control authority was lost. Telemetry from the vehicle was last received approximately nine and a half minutes into the flight, or a little more than two minutes following the first flash observation, at which point all engines had shut down.

Contact with Starship was lost prior to triggering any destruct rules for its Autonomous Flight Safety System, which was fully healthy when communication was lost. It is expected that the Autonomous Flight Safety System fired upon loss of communication, ensuring vehicle breakup following the mishap. The vehicle was observed to re-enter the atmosphere and break apart following the loss of communication.

Starship flew within a designated launch corridor to safeguard the public both on the ground, on water, and in the air. Following the mishap, SpaceX teams immediately began coordination with the FAA, ATO (air traffic control) and other safety officials to implement pre-planned contingency responses. SpaceX worked closely with the Bahamian government and sent a team of experts to coordinate and execute clean-up efforts. All debris came down within the pre-planned Debris Response Area, and there were no hazardous materials present in the debris and no significant impacts expected to occur to marine species or water quality.

SpaceX led the investigation efforts with oversight from the FAA and participation from NASA, the National Transportation and Safety Board, and the United States Space Force. SpaceX submitted a mishap report to the FAA for review and received a flight safety determination from the FAA to enable its next flight of Starship.

The most probable root cause for the loss of Starship was identified as a hardware failure in one of the upper stage's center Raptor engines that resulted in inadvertent propellant mixing and ignition. Extensive ground testing has taken place since the flight test to better understand the failure, including more than 100 long-duration Raptor firings at SpaceX's McGregor test facility.

To address the issue on upcoming flights, engines on the Starship's upper stage will receive additional preload on key joints, a new nitrogen purge system, and improvements to the propellant drain system. Future upgrades to Starship will introduce the Raptor 3 engine which will include additional reliability improvements to address the failure mechanism.

While the failure manifested at a similar point in the flight timeline as Starship's seventh flight test, it is worth noting that the failures are distinctly different. The mitigations put in place after Starship's seventh flight test to address harmonic response and flammability of the ship's attic section worked as designed prior to the failure on Flight 8.

Starship is designed to fundamentally change and enhance humanity's ability to reach space. This step change in capability won't happen overnight and progress towards that goal won't always come in leaps. But by putting hardware into a real-world environment as frequently as possible, while still maximizing controls for public safety, progress can be made to achieve the goal of flying a reliable, fully and rapidly reusable rocket.

posted 05-23-2025 10:05 AM               

Starship's Ninth Flight Test

The upcoming flight test marks the first launch of a flight-proven Super Heavy booster, which previously launched and returned on Starship's seventh flight test. In addition to the reuse milestone, Super Heavy will fly a variety of experiments aimed at generating data to improve performance and reliability on future boosters. The Starship upper stage will repeat its suborbital trajectory and target objectives not reached on the previous two flight tests, including the first payload deployment from Starship and multiple reentry experiments geared towards returning the vehicle to the launch site for catch.

Super Heavy is designed to be fully and rapidly reusable, with future generations capable of multiple launches per day. To achieve this first ever reflight, extensive inspections took place following the booster's first launch to assess hardware health and identify where maintenance or replacement hardware was needed. Known single-use components like ablative heat-shielding were replaced, but a large majority of the booster's hardware will be flight-proven, including 29 of its 33 Raptor engines. Lessons learned from the first booster refurbishment and subsequent performance in flight will enable faster turnarounds of future reflights as progress is made towards vehicles requiring no hands-on maintenance between launches.

The booster on this flight test is also attempting several flight experiments to gather real-world performance data on future flight profiles and off-nominal scenarios. To maximize the safety of launch infrastructure at Starbase, the Super Heavy booster will attempt these experiments while on a trajectory to an offshore landing point in the Gulf of America and will not return to the launch site for catch.

Following stage separation, the booster will flip in a controlled direction before initiating its boostback burn. This will be achieved by blocking several of the vents on the vehicle's hotstage adapter, causing the thrust from Starship's engines to push the booster in a known direction. Previous booster flips went in a randomized direction based on a directional push from small differences in thrust from Starship's upper stage engines at ignition. Flipping in a known direction will require less propellant to be held in reserve, enabling the use of more propellant during ascent to enable additional payload mass to orbit.

After the conclusion of the boostback burn, the booster will attempt to fly at a higher angle of attack during its descent. By increasing the amount of atmospheric drag on the vehicle, a higher angle of attack can result in a lower descent speed which in turn requires less propellant for the initial landing burn. Getting real-world data on how the booster is able to control its flight at this higher angle of attack will contribute to improved performance on future vehicles, including the next generation of Super Heavy.

Finally, unique engine configurations will be demonstrated during the Super Heavy's landing burn. One of the three center engines used for the final phase of landing will be intentionally disabled to gather data on the ability for a backup engine from the middle ring to complete a landing burn. The booster will then transition to only two center engines for the end of the landing burn, with shutdown occurring while still above the Gulf of America and the vehicle expected to make a hard splashdown.

The Starship upper stage will again target multiple in-space objectives, including the deployment of eight Starlink simulators, similar in size to next-generation Starlink satellites. The Starlink simulators will be on the same suborbital trajectory as Starship and are expected to demise upon entry. A relight of a single Raptor engine while in space is also planned.

The flight test includes several experiments focused on enabling Starship's upper stage to return to the launch site. A significant number of tiles have been removed from Starship to stress-test vulnerable areas across the vehicle during reentry. Multiple metallic tile options, including one with active cooling, will test alternative materials for protecting Starship during reentry. On the sides of the vehicle, functional catch fittings are installed and will test the fittings' thermal and structural performance. The entire ship's tile line also received a smoothed and tapered edge to address hot spots observed during reentry on Starship's sixth flight test. Starship's reentry profile is designed to intentionally stress the structural limits of the upper stage's rear flaps while at the point of maximum entry dynamic pressure.

Developmental testing by definition is unpredictable. But by putting hardware in a flight environment as frequently as possible, we're able to quickly learn and execute design changes as we seek to bring Starship online as a fully and rapidly reusable vehicle.

posted 05-27-2025 08:44 PM               

Starship's Ninth Flight Test

Starship's ninth flight test lifted off at 6:36 p.m. CT on Tuesday, May 27 from Starbase, Texas. The Super Heavy booster supporting the mission made the first ever reflight in the Starship program, having previously launched on Starship's seventh flight test in January 2025. The booster performed a full-duration ascent burn with all 33 of its Raptor engines and separated from Starship's upper stage in a hot-staging maneuver. During separation, Super Heavy performed the first deterministic flip followed by its boostback burn.

Super Heavy demonstrated its ability to fly at a higher angle of attack during its descent back to Earth. By increasing the amount of atmospheric drag on the vehicle, a higher angle of attack results in a slower descent speed which in turn requires less propellant for the initial landing burn. Getting real-world data on how the booster controlled its flight at this higher angle of attack will contribute to improved performance on future vehicles, including the next generation of Super Heavy.

As it approached its designated splashdown area in the Gulf of America, Super Heavy relit 12 of its 13 center and middle ring Raptor engines for a landing burn. Contact with the booster was lost shortly after the start of landing burn when it experienced a rapid unscheduled disassembly approximately 6 minutes after launch, bringing an end to the first reflight of a Super Heavy booster.

Following a successful stage separation, the Starship upper stage lit all six of its Raptor engines and performed a full-duration ascent burn. The engines on Starship flew with mitigations in place following learnings from the eighth flight test, including additional preload on key joints, a new nitrogen purge system, and improvements to the propellant drain system.

During Starship's orbital coast, several in-space objectives were planned, including the first payload deployment from Starship and a relight of a single Raptor engine.

Starship's payload bay door was unable to open which prevented the deployment of the eight Starlink simulator satellites. A subsequent attitude control error resulted in bypassing the Raptor relight and prevented Starship from getting into the intended position for reentry. Starship then went through an automated safing process to vent the remaining pressure to place the vehicle in the safest condition for reentry. Contact with Starship was lost approximately 46 minutes into the flight, with all debris expected to fall within the planned hazard area in the Indian Ocean.

Starship's ninth flight test marked a major milestone for reuse with the first flight-proven Super Heavy booster launching from Starbase, and once more returned Starship to space. Data review is underway, and new improvements will be implemented as work begins to prepare the next Starship and Super Heavy vehicles for flight. Developmental testing by definition is unpredictable, but every lesson learned marks progress toward Starship's goal of enabling life to become multiplanetary.