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kim holder
  • Member for 7 years, 10 months
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3 answers
75 votes
44k views
20 bookmarks
What will be the effect if we stand on Jupiter?
7 answers
62 votes
46k views
10 bookmarks
Why is the breathing atmosphere of the ISS a standard atmosphere (at 1 atm containing nitrogen)?
3 answers
59 votes
150k views
21 bookmarks
How fast will 1g get you there?
3 answers
59 votes
6k views
14 bookmarks
What resources could be gained from asteroid mining that would be worth the effort?
2 answers
53 votes
17k views
7 bookmarks
Why is gold used in space technology to protect from heat radiation?
14 answers
49 votes
23k views
12 bookmarks
Why are there no spacecraft rotating for artificial gravity?
11 answers
47 votes
6k views
4 bookmarks
Finned heatsinks in space
1 answer
38 votes
39k views
7 bookmarks
What is a "suicide burn"?
2 answers
38 votes
5k views
6 bookmarks
Could weights make walking on the Moon feel like walking on Earth?
4 answers
37 votes
15k views
13 bookmarks
Effect of atmospheric drag on rocket launches and benefits of high altitude launch sites
4 answers
34 votes
11k views
5 bookmarks
Could the Moon keep an atmosphere?
2 answers
32 votes
50k views
6 bookmarks
What thickness/depth of water would be required to provide radiation shielding in Earth orbit?
10 answers
31 votes
40k views
6 bookmarks
How far can you fall on the Moon without injury?
3 answers
31 votes
16k views
10 bookmarks
Is there a lot of space trash at the Earth-Moon Lagrange points?
1 answer
30 votes
59k views
4 bookmarks
What is the current cost-per-pound to send something into LEO?
7 answers
29 votes
4k views
4 bookmarks
What technological hurdles prevent the development of a space gun?
1 answer
27 votes
3k views
4 bookmarks
How realistic would the Sea Dragon engine be to produce given today's technology?
3 answers
26 votes
13k views
3 bookmarks
How large is the Earth's gravitational Sphere of Influence and how can it be calculated?
3 answers
25 votes
22k views
13 bookmarks
Delta-V chart mathematics
1 answer
24 votes
1k views
4 bookmarks
What's the path of something dropped from a space elevator
1 answer
23 votes
5k views
2 bookmarks
Do Astronauts lose finger nails in space?
5 answers
23 votes
2k views
2 bookmarks
Gliding into the atmosphere
1 answer
22 votes
4k views
6 bookmarks
How did NASA Conclude that the General Theory of Relativity was not Needed for Earth-Moon Flight Path Computation?
7 answers
21 votes
12k views
5 bookmarks
Can ion thrusters be scaled up?
8 answers
21 votes
6k views
2 bookmarks
Is there any way to land a rover on the Moon without using any thrusters?
1 answer
19 votes
8k views
3 bookmarks
What materials are the windows on the US Segment of the ISS made out of?
5 answers
19 votes
6k views
5 bookmarks
How is it known that asteroid 2011 UW158 has so much platinum?
3 answers
18 votes
24k views
6 bookmarks
How to calculate delta-v required for a planet-to-planet Hohmann transfer?
5 answers
18 votes
3k views
3 bookmarks
Feasibility of colonising Ceres?
5 answers
18 votes
2k views
5 bookmarks
What's salvageable from a dead satellite?