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3 answers
57 votes
146k views
20 bookmarks
How fast will 1g get you there?
7 answers
58 votes
57k views
9 bookmarks
Who coined the phrase 'Rapid Unscheduled Disassembly'?
2 answers
32 votes
48k views
6 bookmarks
What thickness/depth of water would be required to provide radiation shielding in Earth orbit?
3 answers
75 votes
43k views
20 bookmarks
What will be the effect if we stand on Jupiter?
5 answers
37 votes
43k views
5 bookmarks
Does the moon have a name?
10 answers
31 votes
38k views
6 bookmarks
How far can you fall on the Moon without injury?
2 answers
27 votes
25k views
2 bookmarks
How is heat dissipated from a satellite or any metal in space?
2 answers
21 votes
23k views
9 bookmarks
Could I build my own spaceship?
6 answers
206 votes
21k views
32 bookmarks
Can I borrow a lunar rover?
4 answers
67 votes
21k views
6 bookmarks
Could we breathe an atmosphere that is not nitrogen based?
2 answers
22 votes
19k views
10 bookmarks
How do the sizes of the various proposed manned capsules differ?
2 answers
19 votes
18k views
4 bookmarks
Maximum survivable long term g-forces
1 answers
36 votes
16k views
9 bookmarks
What would the size and rotation of a station need to be to produce 1g gravity from head to toe?
6 answers
87 votes
15k views
27 bookmarks
How much bigger could Earth be, before rockets wouldn't work?
3 answers
14 votes
13k views
3 bookmarks
Can you swim in space?
4 answers
16 votes
13k views
5 bookmarks
Why do so few satellites pass over the poles, and why do so many focus on the equator?
3 answers
58 votes
12k views
7 bookmarks
Why did NASA send two astronauts to the moon instead of one?
5 answers
38 votes
12k views
6 bookmarks
Why aren't all satellite-carrying rockets launched from airplanes?
1 answers
5 votes
12k views
5 bookmarks
How to calculate rocket acceleration?
4 answers
28 votes
12k views
10 bookmarks
Is there any way to find and track Pioneer 10, 11, and Voyager 1, 2?
4 answers
35 votes
11k views
7 bookmarks
Why is there a hole in solid rocket engines?
4 answers
39 votes
11k views
8 bookmarks
Apollo simulator practical jokes
3 answers
17 votes
10k views
5 bookmarks
How much RF transmit power does DSN need to send commands to Voyager?
5 answers
31 votes
10k views
6 bookmarks
Why not travel to Mars in 2 months?
6 answers
47 votes
10k views
3 bookmarks
Could the shuttle wait out the whole burn of SRBs on launchpad in case of a problem on launch?
7 answers
33 votes
10k views
8 bookmarks
Is there any reason why a spacecraft would not be able to turn around without a gravity assist?
3 answers
65 votes
9k views
5 bookmarks
Is there no physical security in space, other than being in space?
5 answers
30 votes
8k views
3 bookmarks
For how long will the Voyager records remain playable?
3 answers
23 votes
8k views
5 bookmarks
Why did the Saturn V stage fairing appear to burn after separation?
6 answers
14 votes
8k views
1 bookmarks
What maximum speeds can be expected from meteorites?