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Everyday Astronaut
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36 Answers

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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?
Feb 25 '19 at 15:17
19
Would a grinding machine be a simple and workable propulsion system for an interplanetary spacecraft?
Mar 30 '19 at 22:29
15
Why doesn't Rocket Lab use a solid stage?
May 11 '19 at 19:14
11
Why no parachutes in the Orion AA2 abort test?
Jul 4 '19 at 7:02
10
Bombing the Moon: how much debris would there be in stable orbit?
Nov 19 '18 at 10:07
10
What is the deepest we have penetrated a terrestrial body other than Earth?
Apr 13 '18 at 11:24
8
How are astronauts in the ISS protected from electric shock?
Oct 15 '19 at 19:04
8
Starlink vs 5G technology, are they directly competing services?
Apr 3 '18 at 16:16
7
Why will the BFS reenter broadside rather than engine first?
Apr 11 '18 at 6:23
5
The Orbital Mass Accelerator Engine Theory
Apr 26 '18 at 16:17
5
How long does trash jettisoned by hand from the ISS fall before burning up on reentry?
Mar 9 '18 at 8:31
4
What factors do (or are expected to) limit reuse of a Falcon 9 block 5 first stage?
Jun 14 '20 at 0:04
4
How will SpaceX's Starship accommodate its 100 passengers from the effects of micro-gravity?
Oct 2 '19 at 9:27
4
Why is private spaceflight suddenly expanding so quickly?
Nov 20 '18 at 14:16
4
Assuming a spacecraft is traveling in a constant rate and our Astronaut will exit it to a space walk, will she be “left behind” by the spacecraft?
Nov 9 '18 at 14:24
4
Is the SLS irrelevant if the Falcon Heavy launch is successful this year?
Jan 31 '18 at 10:33
3
Does Falcon 9's first stage use laser, radar or vision to assist landing?
Aug 26 '20 at 7:34
3
What would sounds on Mars be like?
Dec 18 '18 at 19:43
3
Why is delta-v the most useful quantity for planning space travel?
Mar 26 '19 at 12:36
3
Did any rockets use differential throttling instead of gimbal?
Dec 6 '18 at 13:13
2
Do Falcon 9/Heavy Block 5 boosters need landing legs? Or can they land back on their launch mounts?
Dec 6 '19 at 17:55
2
What is the deepest we have penetrated a terrestrial body other than Earth?
Feb 27 '19 at 10:00
2
Is there any experimental work being done on terraforming?
Mar 2 '18 at 11:51
2
Accelerating spaceships via planetary magnetic fields
Mar 2 '18 at 8:57
2
How to plot a Clohessy Wiltshire trajectory on MATLAB?
Feb 23 '18 at 15:57
1
Would a higher air pressure on the ISS or elsewhere make it easier to “swim” in microgravity?
Jul 10 '20 at 14:13
1
How does Orbex save structural weight by using coaxial tanks?
Aug 19 '19 at 7:08
1
What happens in to the fuel in fuel-rich Lox-Kerosene?
Jul 9 '19 at 15:20
1
Would it be practical to add side payloads on top of Falcon Heavy's side boosters?
Jun 11 '19 at 11:40
1
Drawbacks and advantages of two slidable & rotatable control surfaces for BFS sized spaceships
Oct 23 '18 at 12:24
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