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user2277550
  • Member for 7 years, 10 months
  • Last seen more than a month ago
12 votes
1 answer
3k views

The principle behind regenerative cooling?

10 votes
1 answer
480 views

Are there proven economic advantages to rocket re-usability?

8 votes
5 answers
4k views

Can we use a rail gun on the moon to launch stuff directly to mars?

7 votes
4 answers
1k views

Why can't we use charged fine metal dust instead of plasma for ion thruster?

5 votes
3 answers
728 views

Why aren't there carbonate rocks on the moon?

5 votes
1 answer
340 views

What would be the way to extract iron and aluminium in space without carbon?

4 votes
2 answers
463 views

A certain way to blow up Europa, what is wrong with this suggestion?

4 votes
2 answers
762 views

SpaceX second stage altitude decrease?

4 votes
2 answers
825 views

How does SpaceX plan to make money with StarLink Broadband?

2 votes
0 answers
192 views

Layout of regenerative cooling tubing?

2 votes
5 answers
695 views

Space elevator: Is there some way you could make one to a low earth orbit?

1 vote
1 answer
204 views

An program that automatically generates a rocket guidance system?

1 vote
1 answer
204 views

How can one ensure safety of the crew capsule if the rocket blows up at max dynamic pressure?

-2 votes
1 answer
635 views

Shape of Dragon Crew capsule affecting ballistic descent?