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10 votes
3 answers
3k views

How did NASA figure out when and where the Apollo capsule would touch down on the ocean?

5 votes
1 answer
235 views

How many minutes the Apollo astronauts had to wait from splashdown until the first frogmen touched the CM?

1 vote
0 answers
78 views

How many of the heat shield tiles on Atlantis and Endeavour are original?

14 votes
1 answer
303 views

Does Mars Reconnaissance Orbiter require "reprogramming" when handling communications for newer spacecraft or landers?

12 votes
4 answers
2k views

How do I learn more about rocketry?

11 votes
4 answers
3k views

If Starliner returns safely on autopilot, can this still prove that it's safe? Could it be launched back up to the ISS again to complete its mission?

22 votes
2 answers
3k views

Did NASA's Borg Collective-designed antennas work? Have similar designs ever been used in spacecraft beyond testing?

3 votes
1 answer
88 views

What ever happened to (that NASA link about) SpinSat?

17 votes
6 answers
12k views

Why doesn’t NASA build its rockets using graphene?

2 votes
0 answers
32 views

CEA - What does the shock mode do?

6 votes
2 answers
6k views

What if something goes wrong during the seven minutes of terror?

10 votes
4 answers
6k views

Why were Solid Rockets chosen for the SLS

0 votes
1 answer
345 views

What caused 2 astronauts to be stranded in space

10 votes
1 answer
417 views

Will any of the COTS providers be able to perform expedited rendezvous with the ISS?

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