Space Exploration Beta

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Answer a question with score of 1 or more.
Awarded 3055 times.
What is the numerical procedure to find the next closest approach between two bodies on keplerian orbits?
Awarded yesterday
Trying to run NASA GMAT on Ubuntu 20.04, I get the error "no main manifest attribute, in gmat.jar"
Awarded 2 days ago
Are pictures of Earth' space junk realistic?
Awarded Sep 17 at 2:57
Do they assemble the Falcon Heavy on the TEL?
Awarded Sep 17 at 2:21
What is the largest number of humans in space at the same time and what vessels were they on when it happened?
Awarded Sep 16 at 14:02
Is there a maximum Isp for "exothermic chemical reaction rockets"?
Awarded Sep 15 at 12:31
How was magnetic tape decay prevented in Voyager 1?
Awarded Sep 15 at 1:36
What's the first recorded use of a countdown associated with a rocket launch?
Awarded Sep 13 at 0:07
Why is dust such a problem in microgravity? Wouldn't proper air circulation and filtration take care of it?
Awarded Sep 10 at 16:26
(post deleted or otherwise unavailable)
Awarded Sep 6 at 19:35
Was the Isp = 11,000 seconds Neumann Drive tested on the ISS? Did it work? How well did it perform?
Awarded Sep 5 at 10:05
Why are the recent flights of two billionaires discussed in terms of space travel?
Awarded Sep 1 at 8:32
What is the "mass" of a Lagrange point?
Awarded Aug 25 at 13:12
Why is it not concerning from a cost perspective to have so many engines on Starship?
Awarded Aug 23 at 15:57
Why did the space shuttle's altitude go down after reaching 108,000m?
Awarded Aug 22 at 21:51
(post deleted or otherwise unavailable)
Awarded Aug 22 at 18:48
What crimes have been committed or attempted in space?
Awarded Aug 19 at 22:00
Exactly why does Starship need to be this big for interplanetary travel?
Awarded Aug 19 at 11:57
How many astronauts have had spiritual experiences while in space?
Awarded Aug 19 at 7:01
Where does space travel rank in per-passenger-mile safety?
Awarded Aug 19 at 0:45
Can you throw a stone into longterm orbit from the surface of a spherical planet if it has lumpy enough gravity?
Awarded Aug 16 at 18:08
(post deleted or otherwise unavailable)
Awarded Aug 16 at 17:47
Recycling space debris for manufacturing in space
Awarded Aug 15 at 14:11
What is the biggest satellite constellation in space right now?
Awarded Aug 15 at 5:51
How to calculate velocity vector in perifocal coordinates
Awarded Aug 14 at 21:45
Are there any long term storable sources of vitamin C?
Awarded Aug 12 at 15:58
Manufacturing solar cells on the Moon
Awarded Aug 11 at 15:41
How can SpaceX receive data from Starship during re-entry communications blackout
Awarded Aug 9 at 18:02
Is there any limit to how many times you can increase velocity by repeated sling shot manoeuvres?
Awarded Aug 7 at 13:33
Why not land SpaceX's Starship like a plane?
Awarded Aug 3 at 1:56
How to calculate the velocity vector in the case of a hyperbolic orbit?
Awarded Aug 2 at 21:42
Why does Unity look transparent?
Awarded Aug 2 at 8:10
What would be the practical benefits of finding life in the Solar System?
Awarded Aug 1 at 10:48
Are People Actually Serious About Mining The Moon?
Awarded Jul 31 at 14:26
Why are we trying to prevent life from spreading via landers rather than actively encouraging it?
Awarded Jul 30 at 3:56
Why are we trying to prevent life from spreading via landers rather than actively encouraging it?
Awarded Jul 28 at 21:21
Why are we trying to prevent life from spreading via landers rather than actively encouraging it?
Awarded Jul 28 at 10:50
Is there any demonstrated or even proposed technology that can sterilize a spacecraft with 100% certainty and yet leave it electronically functional?
Awarded Jul 26 at 9:40
Why aren't ISS attitude control thrusters a "tool" picked up by robotic arms?
Awarded Jul 26 at 8:05
Are the initial conditions for the Apollo PFS objects' orbits known (or knowable) as well as they were for the ascent module?
Awarded Jul 24 at 23:16
(post deleted or otherwise unavailable)
Awarded Jul 23 at 23:05
Is the amount of accurate information in a TLE equal to that of a single state vector?
Awarded Jul 23 at 10:20
Is this egg-shaped nose cone a good, aerodynamic design?
Awarded Jul 22 at 17:18
Why aren't expander cycle engines used on lower stages?
Awarded Jul 22 at 0:50
How do cubesat owners first find out their cubesat's initial trajectory? How do they point antennas at it before official TLEs start to appear?
Awarded Jul 21 at 17:27
Why shadows of the blades on Ingenuity navcam photos looks brighter than shadows of the legs?
Awarded Jul 19 at 11:41
Is there drag inside a Space craft?
Awarded Jul 19 at 8:35
Why do spacecraft have small RAM? Which spacecraft had the largest memory?
Awarded Jul 18 at 21:17
Where to look for next rocket launches?
Awarded Jul 18 at 13:48
Is Starship planned to fly directly to the ISS without first stage? Is it even possible?
Awarded Jul 16 at 22:15
Where will we get nitrogen in space?
Awarded Jul 15 at 13:41
Why does Virgin Galactic's SpaceShipTwo need a carrier airplane?
Awarded Jul 14 at 14:57
What is the largest number of humans in space at the same time and what vessels were they on when it happened?
Awarded Jul 12 at 11:02
Manufacturing rope, textile, and clothing on Mars
Awarded Jul 12 at 10:27
When do Mars, Venus and Earth Align?
Awarded Jul 12 at 5:06
What exactly the orbit accuracy requirement in KSP missions and contracts, and how is it mathematically defined and implemented?
Awarded Jul 12 at 3:35
What image compression algorithm did the Voyagers use?
Awarded Jul 12 at 3:09
Do the passengers in Virgin Galactic's VSS Unity spacecraft have a parachute or some other way to escape the spacecraft if needs be?
Awarded Jul 11 at 16:34
Is there a change in altitude when "falling around earth"?
Awarded Jul 8 at 8:55
Harvesting Venus atmosphere to Terraform Mars
Awarded Jul 8 at 6:01
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