Everyday Astronaut
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5 answers
28 votes
5k views
1 bookmarks
Falcon 9: engines stabilize spin
1 answers
26 votes
5k views
4 bookmarks
Falcon 9 design: Why is the cargo fairing so much wider than the lower parts?
1 answers
23 votes
5k views
2 bookmarks
Why are Falcon 9 main engines throttled down and up shortly after launch?
1 answers
41 votes
4k views
4 bookmarks
Which object has been to space the most times?
2 answers
13 votes
3k views
1 bookmarks
Is there real footage of Tiangong 1 reentry?
3 answers
7 votes
3k views
Why won't Falcon Heavy launch with 100% thrust?
1 answers
6 votes
1k views
1 bookmarks
Artificial gravity on Mars
1 answers
16 votes
1k views
How much propellant is used up until liftoff?
3 answers
26 votes
1k views
3 bookmarks
What would sounds on Mars be like?
1 answers
11 votes
1k views
What will happen to Parker Solar Probe in the long term?
2 answers
3 votes
843 views
1 bookmarks
Bombing Moon and Mars: What would it look like?
2 answers
6 votes
661 views
Do Falcon 9/Heavy Block 5 boosters need landing legs? Or can they land back on their launch mounts?
1 answers
7 votes
578 views
2 bookmarks
Would it be beneficial to land Falcon Heavy's side boosters on droneships too?
1 answers
2 votes
451 views
Is a Mars return mission by Starship possible without local propellant production, given the current specifications?
1 answers
4 votes
388 views
1 bookmarks
Does this rocket engine test run look healthy?
1 answers
3 votes
384 views
What's the viscosity of chilled RP-1?
2 answers
3 votes
382 views
Super Heavy explosion, how much TNT equivalent would that be?
3 answers
4 votes
378 views
How much of the exhaust speed is due to combustion and how much is due to the injection?
1 answers
5 votes
315 views
2 bookmarks
How much mass does a gimbal mechanism add to a rocket?
0 answers
0 votes
310 views
How do toroidal and linear aerospike nozzles compare?
1 answers
11 votes
295 views
Asteroid impact on the Moon: which effects cause the flash?
1 answers
4 votes
286 views
What's the maximum residual speed for docking?
0 answers
6 votes
256 views
Falcon 9: how much fuel is left on a booster after stage separation?
0 answers
4 votes
229 views
How to measure the temperature inside a combustion chamber
2 answers
3 votes
205 views
1 bookmarks
SpaceX's Iridium 4: Explanation of Trail Footage
1 answers
2 votes
197 views
SpaceX rideshare missions: how many smallsats fit?
0 answers
3 votes
195 views
How do the mechanical properties of 301 stainless steel, carbon fibre composites, and Aluminium-Lithium alloys compare?
1 answers
3 votes
193 views
Is there any use for the "main body tool" of the BFR, now that the design has switched from carbon fiber to steel?
2 answers
4 votes
193 views
What's this camera view of Falcon Heavy's test flight?
0 answers
10 votes
193 views
1 bookmarks
What kind of robots will be sent to Mars with the first Starships(s)? (ex BFR)