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36 votes
5 answers
5k views

Is warp drive a legitimate avenue of scientific investigation?

5 votes
2 answers
1k views

Can Maglev trains ever reach escape velocity?

-1 votes
0 answers
8 views

Could Phobos be a target for asteroid mining?

8 votes
2 answers
388 views

What is the heaviest object to have been returned to Earth with a parachute?

2 votes
0 answers
51 views

How was it determined that 1977 was best time to launch voyagers for "grand tour"

5 votes
5 answers
3k views

Is a dome really the most efficient way to contain gas in a vacuum?

7 votes
3 answers
2k views

Power to grow food per person

16 votes
1 answer
828 views

28V vs. 124V on the ISS

6 votes
1 answer
652 views

What effects would the longer days on Mars have on humans?

5 votes
1 answer
104 views

Where does this formula for the argument of periapsis come from?

3 votes
1 answer
237 views

For how long is a satellite orbiting at 300 miles going to be visible from horizon to horizon?

3 votes
0 answers
50 views

Did the ISS CREAM experiment actually get relocated?

0 votes
1 answer
69 views

Example using NASA GMAT to model a sounding rocket launch

6 votes
2 answers
588 views

Rocket engine with lowest Isp to reach orbit

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