Everyday Astronaut

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Questions (38)

Votes Activity Newest

39	Which object has been to space the most times?
28	Falcon 9: engines stabilize spin
26	Falcon 9 design: Why is the cargo fairing so much wider than the lower parts?
22	Why are Falcon 9 main engines throttled down and up shortly after launch?
21	What would sounds on Mars be like?

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+8	Isentropic flow through a rocket nozzle and constant mass flow rate
+10	Why are Falcon 9 main engines throttled down and up shortly after launch?
+10	What would sounds on Mars be like?
+10	Does Falcon 9's first stage use laser, radar or vision to assist landing?

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Answers (36)

Votes Activity Newest

35	A starship is travelling at 0.9c and collides with a small rock. Will it leave a clean hole through, or will more happen?
18	Would a grinding machine be a simple and workable propulsion system for an interplanetary spacecraft?
14	Why doesn't Rocket Lab use a solid stage?
11	Why no parachutes in the Orion AA2 abort test?
10	Bombing the Moon: how much debris would there be in stable orbit?

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Tags (125)

35 impact × 2	21 engine-design × 4
35 relativistic-rocket	20 orbital-mechanics × 6
24 spacecraft × 3	20 design-alternative × 3
23 propulsion × 2	18 physics
21 spacex × 12	15 engines × 4

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Bookmarks (25)

Votes Activity Newest Views Added

33	How to programmatically calculate orbital elements using position/velocity vectors?
14	Why aren't expander cycle engines used on lower stages?
12	What does this SpaceX tweeted photo show and what causes the pure red and blue color?
12	Would there be any benefit to sending a probe to a black hole?
10	Why does the Starship methane header tank have so many holes in it?

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Space Exploration

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Votes cast (412)

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25	down		194	answer		2

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