Woody
  • Member for 3 months
  • Last seen this week
  • Kerbal
5 answers
21 votes
5k views
Why are eclipses of the James Webb by the Earth or Moon not permitted during the mission?
3 answers
18 votes
3k views
Why are unused launch abort rockets jettisoned rather than used to augment thrust?
1 answers
16 votes
1k views
1 bookmarks
How does SpaceX plan to supply or recycle respiratory gasses?
2 answers
14 votes
1k views
1 bookmarks
Would a sufficiently deep cavern on Mars provide habitable temperature and atmospheric pressure? Was Dick Tracy wrong?
1 answers
11 votes
436 views
Why do EVA suits have legs?
1 answers
11 votes
1k views
Does NASA police urine production by astronauts?
0 answers
11 votes
190 views
Has Buzz Aldrin’s Line-of-Sight rendezvous method ever been used?
2 answers
10 votes
241 views
1 bookmarks
Could Apollo's Sextant navigation use similar geometry as Marine Navigation?
2 answers
9 votes
1k views
1 bookmarks
During orbital rendezvous, at what distance and approach velocity does the transition from orbital mechanics to “boating around” occur?
2 answers
8 votes
252 views
Question: By design, JWST cannot observe in the anti-sun direction. Is this due to Gegenschein backscatter?
1 answers
6 votes
138 views
When the ISS is de-orbited, what is the likely mass of the largest impact fragment?
1 answers
6 votes
168 views
Question: Does JWST have hardware that could be used as a docking fixture by repair spacecraft?
1 answers
6 votes
195 views
What generates static charge on the ISS?
1 answers
6 votes
227 views
Why does the Buzz Aldrin Mars Cycler not play a larger role in planning for Mars exploration?
0 answers
6 votes
158 views
What to do until the hearse arrives: is there a designated morgue on ISS?
0 answers
5 votes
98 views
New spin on laundry day: How will ISS cope with washing machine vibration and angular momentum?
2 answers
4 votes
328 views
Is JWST Halo orbit prograde or retrograde and why?
1 answers
4 votes
192 views
JWST Halo Orbits for Dummies: can halo orbits be usefully approximated by Simple Harmonic Motion?
1 answers
4 votes
117 views
How are JWST tanks baffled to dampen slosh?
2 answers
4 votes
581 views
Why does JWST have such a big Blind Spot?
0 answers
4 votes
144 views
Deorbit of ISS is a unique event. Are there plans for scientific observation?
2 answers
4 votes
495 views
Starship: Methane and Oxygen can't both be liquid, except in a narrow temperature range. Is this a problem for interplanetary voyages?
1 answers
3 votes
49 views
Is the inter-manifold transfer of JWST between Sun-Earth L2 and Earth-Moon L1 within the capability of existing propulsion systems?
0 answers
3 votes
44 views
Are L1 and L2 orbital periods always half the orbital period of the massive bodies?
1 answers
3 votes
89 views
Why does the moon’s transit appear so inclined in this STEREO-B video?
1 answers
3 votes
166 views
Starship reentry velocity on return from Mars: What are the options
1 answers
3 votes
93 views
1 bookmarks
What transportation energy “currency” would be most suitable for mobile machinery on the Martian surface?
2 answers
3 votes
205 views
Can ISS trash be used as reaction mass for orbital maintenance
2 answers
2 votes
69 views
With independent control of attitude and thrust direction, could JWST be kept pointing in a “safe” direction during "towing"?
1 answers
2 votes
91 views
Do Bernoulli grippers work in a vacuum?