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  Space Cover 52: "At least something worked"

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Author Topic:   Space Cover 52: "At least something worked"

Posts: 458
From: Northville MI USA
Registered: Aug 2005

posted 04-12-2010 06:24 PM     Click Here to See the Profile for yeknom-ecaps   Click Here to Email yeknom-ecaps     Edit/Delete Message   Reply w/Quote
Space Cover of the Week, Week 52 (April 12, 2010)

Space Cover #52, Apollo XIII "at least something worked"

" least something worked" was the quote from astronaut Jim Lovell. The largest and heaviest man-made object to impact on the moon up to that time was the S-IVB/Instrument Unit of Apollo XIII, which was purposely smashed into the moon for scientific purposes.

The 5800 MPH crash of the 61.3 foot long third stage provided vital information for ultimately unraveling the mystery of the moon's origin.

The force of the impact was equivalent to 11 tons of TNT. The impact at 7:09 PM CST April 14, 1970, set off a 4-hour moonquake that was recorded by the seismometer erected in the Ocean of Storms by astronauts Charles Conrad and Alan Bean during Apollo XII.

The impact of the S-IVB/IU stage was about 230 miles west of the planned Apollo XIII landing site and 124 miles west of the Apollo XII landing site.

By comparing and correlating the impact data from the X-IVB/IU stage impact and that of the intentional crash of the ascent stage of the LEM 'Intrepid' during the Apollo XII mission scientists hoped to add to knowledge about the moon's composition and underground structures. The crashing of the 'Intrepid' at 3740 MPH caused shock waves which lasted nearly an hour. Normally the S-IVB/IU stage would have sped past the moon at a distance of about 2000 miles into an orbit around the sun.

The cover shown was produced by the founders of Solar Covers before it was formed.

This is the 52nd Space Cover of the Week - a whole year - on behalf of my colleagues in producing these posts I hope you have enjoyed looking at them as much as we have enjoyed putting them together. On to year two...


Posts: 164
From: millersville, maryland, usa
Registered: Jul 2004

posted 04-15-2010 04:27 PM     Click Here to See the Profile for stevedd841   Click Here to Email stevedd841     Edit/Delete Message   Reply w/Quote
Happy New Year (52 space covers of the week completed)! Tom, I have this cover but never really stopped to consider the history behind it. Many thanks for showcasing a great cover for Apollo 13 with an additional great story for the service module's involvement in this experiment and not known by many collectors.

All times are CT (US)

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