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  Handheld Universal Lunar Camera (HULC)

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Author Topic:   Handheld Universal Lunar Camera (HULC)
Robert Pearlman
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posted 10-28-2023 03:39 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
European Space Agency release
Next generation Moon camera tested in Europe

When astronauts return to the Moon, they will take more pictures of the lunar surface than any humans before. To develop the best camera for the job, European astronauts and scientists are lending a helping hand to NASA's Artemis imagery team.

The engineers behind the Handheld Universal Lunar Camera (HULC) worked with ESA in the lunar-like landscapes of Lanzarote, Spain, to put the new camera through its paces during the PANGAEA training programme.

Above: ESA astronaut Thomas Pesquet documents field exploration in the lunar-like landscapes of Lanzarote, Spain.

PANGAEA prepares astronauts to become effective field scientists for future missions to the Moon. The programme saw an international crew testing the capabilities of the camera in realistic scenarios for geological exploration.

During the geological field trips astronauts document their exploration work using the ESA Electronic Field Book – a tool that allows PANGAEA's geology instructors to follow and support the crew from the science room. This year, the science team received live audio and video in real time.

"Adding the Moon camera allowed the crew to have a realistic taste of lunar surface exploration. It was a great enhancement of their experience, something we'd be happy to repeat in future editions," says Loredana Bessone, PANGAEA's Project Lead.

A new camera for the Moon

Above: Astronauts use the Handheld Universal Lunar Camera (HULC) to document field exploration in the lunar-like landscapes of Lanzarote, Spain.

The new lunar camera is built from professional off-the-shelf cameras with great sensitivity to light and state-of-the-art lenses. To prepare it for space, the NASA team made several modifications, including adding a blanket for dust and thermal protection – temperatures range from minus 200 to 120 degrees Celsius on the Moon – as well as a new set of ergonomic buttons for astronauts wearing gloves in bulky spacesuits.

One of the most prolific European photographers in orbit, ESA astronaut Thomas Pesquet, praised the design after using it at PANGAEA. "The engineers have done a really good job reconfiguring the buttons and arranging them in a simple yet reliable protection for the camera," he says.

Capturing images will be key for documenting scientific discoveries during future Moon missions. One objective during PANGAEA was to select the most suitable lenses.

Above: Jeremy Myers, NASA’s lead for the Handheld Universal Lunar Camera (HULC), gives an overview of the design to astronauts during the PANGAEA training programme.

Thomas Pesquet, NASA astronaut candidate Jessica Wittner and Takuya Onishi from the Japanese space agency used the camera in broad daylight, but also in the darkness of volcanic caves to simulate extreme conditions for lunar photography.

"The lunar camera will be one of many tools they will need to handle on the Moon, so it should be easy to use. The human factor is a big deal for us, because you want the camera to be intuitive and not taxing on the crew," explains Jeremy Myers, NASA's lead for the HULC camera.

Together with some of Europe's best planetary scientists, Jeremy reviewed the quality of the images. "It was very useful to have the geologists' point of view to make sure the photos had the right resolution, depth of field and exposure to maximise the science results," he adds.

A quantum leap from the Apollo era

Astronauts of the Apollo 11 mission took iconic images of the Moon with a very different camera – a standalone, mechanical Hasselblad camera with a Harrison Schmidt 60 mm lens. During the entire mission, the astronauts collected 1407 photos from four of these cameras.

Above: ESA astronaut Thomas Pesquet documents field exploration in the lunar-like landscapes of Lanzarote, Spain.

The Artemis Moon camera will be the first mirrorless camera for handheld use in space. Mirrorless cameras provide excellent image quality in low light situations, making it well suited to the challenging high contrast environment of the Moon.

The camera will also record videos. Videos can provide situational awareness to the ground teams and help document the exploration of our nearest cosmic neighbour.

Lights, camera, action!

Thomas took over 380,000 pictures in space during his two missions to the International Space Station. "I spent a lot of time learning what you can do with the cameras available in orbit. It is not just point and shoot. On the Moon, just pressing the buttons in auto mode won't be good enough," he explains.

Above: NASA astronaut candidate Jessica Wittner uses the Handheld Universal Lunar Camera (HULC) in a lava tube in Lanzarote, Spain.

The Artemis III mission will land on the South Pole of the Moon, close to permanently shadowed craters where the crew will look for evidence of water ice. "Conditions for photography will be tricky in many ways, from operating the camera with the gloves on, to very low light levels and big contrast between bright and dark sources," adds Thomas.

The future moonwalkers will take a variety of shots on the lunar surface, from close-up to panoramic images and videos. Jeremy spent a week with the PANGAEA crew closely following the camera's performance in the hands of the astronauts.

"We are trying to choose the best lenses for the Moon shots and optimise the settings in a smart way. We want astronauts to be able to take a detailed image of a crystalline structure in a rock and to capture landscapes, all with the right exposure," explains Jeremy.

The testing continues

While the core of the camera remains the same, the interface and housing keep evolving. One version will fly to the International Space Station for additional testing in the near future.

NASA teams have done extensive testing for the three major challenges of space: thermal, vacuum and radiation effects. On the Moon, one added challenge will be the abrasive nature of lunar dust. Last year, the camera was part of simulated moonwalk with the JETT 3 mission in Arizona, USA.

Above: Jeremy Myers, NASA’s lead for the Handheld Universal Lunar Camera (HULC), gives an overview of the design to astronauts during the PANGAEA training programme.

Some European astronaut candidates recently had the opportunity to handle the camera during an imagery meeting in the Netherlands, and ESA astronauts Matthias Maurer and Alexander Gerst tested its features at the European Astronaut Centre in Germany.

"We will continue modifying the camera as we move towards the Artemis III lunar landing," says Jeremy. "I am positive that we will end up with the best product – a camera that will capture Moon pictures for humankind, used by crews from many countries and for many years to come," he concludes.

Above: ESA career astronaut Rosemary Coogan holds the Handheld Universal Lunar Camera during an imagery meeting with NASA in the Netherlands.

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posted 10-29-2023 11:41 AM     Click Here to See the Profile for Headshot   Click Here to Email Headshot     Edit/Delete Message   Reply w/Quote
Back in the '60s the AstroGeology Science Center of the USGS designed and built a prototype Lunar Geological Exploration Camera. It had three lenses and, in addition to taking "normal" pictures, it could also take stereoscopic images as well. The film transport mechanism was complicated, but that design would be readily adaptable to today's digital sensors.

The camera is shown on page 89 of Images of America Series book North Arizona Space Training by Schindler and Sheehan.

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