Space Exploration Beta

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 Popular Question
Question with 1,000 views. This badge can be awarded multiple times.
Awarded 4534 times.
Earth Launch System with Water Propellant
Awarded 9 hours ago
When burns are made during inefficient parts of the orbit, where does the lost energy go?
Awarded 11 hours ago
Why ISS Astronauts have red stripes?
Awarded 21 hours ago
Agriculture on an exoplanet
Awarded yesterday
What keeps the pressure stable inside the ISS?
Awarded yesterday
If we got to Mars right now and landed at the poles (where there is a lot of water ice) how long would we be able to stay there?
Awarded 2 days ago
Could a 21 meter space telescope detect the nearest exoplanets?
Awarded Sep 21 at 4:35
What is the practical limit on the space station dimensions given current technology?
Awarded Sep 20 at 18:05
Cost per launch to ISS: Starliner vs Crew Dragon
Awarded Sep 20 at 14:17
What will China's new "space station" in Argentinian Patagonia be used for?
Awarded Sep 19 at 14:56
Was there an all-civilian space flight before Inspiration4?
Awarded Sep 17 at 22:47
What will the role of a pilot be on the SpaceX Starship?
Awarded Sep 16 at 9:08
Are pictures of Earth' space junk realistic?
Awarded Sep 16 at 8:55
Brouwer-Lyddane mean semi major axis bias
Awarded Sep 15 at 21:11
Accurate map of Ceres
Awarded Sep 15 at 17:42
Overcoming the speed of light thanks to ion thrusters
Awarded Sep 15 at 3:57
How will the Inspiration 4 capsule deorbit?
Awarded Sep 14 at 21:26
Titan vs Mars for colonization
Awarded Sep 14 at 9:06
What speed and altitude can I reach with a primitive sugar rocket?
Awarded Sep 13 at 13:25
Why do Teledesic satellites look so weird? What are these structures and where's the satellite bus?
Awarded Sep 13 at 9:18
Flying fuel tanks! Which deep-space spacecraft had the largest fuel mass fraction?
Awarded Sep 12 at 1:41
Would working at night on the surface of Mars/Luna protect from radiation?
Awarded Sep 11 at 16:57
Can a blimp dead drop on Mars or Earth this way?
Awarded Sep 10 at 6:42
Why is dust such a problem in microgravity? Wouldn't proper air circulation and filtration take care of it?
Awarded Sep 9 at 16:25
F1 engine turbopump
Awarded Sep 9 at 11:12
What is the text on Neil Armstrong's space suit's left glove?
Awarded Sep 9 at 10:31
Why was there a miniature bread on the ISS?
Awarded Sep 8 at 5:17
Would astronauts on the ISS be affected by the radiation from a global nuclear war?
Awarded Sep 7 at 18:42
What are the rectangular wires around Atlas V launch site?
Awarded Sep 7 at 7:47
What altitudes did the first astronauts reach?
Awarded Sep 7 at 3:11
Can we write with chalk on blackboard in space?
Awarded Sep 6 at 22:10
What is the first non-solar-system object Voyager 1 will run into?
Awarded Sep 6 at 9:46
What happened to Voyager 2's tracking loop capacitor? How did it get damaged? What is it for? What's a tracking loop anyway?
Awarded Sep 6 at 2:05
Would reusability affect the performance of a rocket engine compared to a single launch version of that rocket engine
Awarded Sep 4 at 19:38
Are there any photographs of the frozen waste water after a urine dump in space?
Awarded Sep 3 at 1:05
What are the required parameters for modern Earth-like life on a planet? [closed]
Awarded Sep 2 at 5:11
Why does Earth's atmospheric density have a big "knee" around 100 km? Is there a good analytical approximation?
Awarded Sep 2 at 1:05
"Lunar vacuum cleaner": Design considerations for regolith dust suction system in exospheric conditions
Awarded Sep 1 at 17:33
Why were EVA suits never silver?
Awarded Sep 1 at 16:50
Why are the recent flights of two billionaires discussed in terms of space travel?
Awarded Aug 31 at 1:55
What Gravity does the Sun affect items with at the distance of 1 AU?
Awarded Aug 30 at 22:41
Would gold mining on Mars be truly profitable?
Awarded Aug 30 at 19:40
What spacesuit helmet is this?
Awarded Aug 30 at 9:47
Why can't we use charged fine metal dust instead of plasma for ion thruster?
Awarded Aug 29 at 17:40
Calculating dV to raise apoapsis at an arbitrary point of an orbit
Awarded Aug 29 at 16:17
How to interpret and use characteristic energy C3 in this case?
Awarded Aug 29 at 4:41
What is the theoretical max specific impulse of rotating detonation engines in space flight?
Awarded Aug 28 at 19:41
Building space stations with the original, smaller shuttle
Awarded Aug 27 at 19:21
Space Shuttle Challenger bringing back Salyut-7
Awarded Aug 27 at 5:36
Is the Nudelman-Rikhter gun installed on Zvezda module?
Awarded Aug 26 at 21:31
Cartoon-like characters on the side of the Tianwen-1 Mars lander?
Awarded Aug 26 at 20:05
Why was the Energia’s payload capacity to lunar orbit greater than its payload capacity to geosynchronous orbit?
Awarded Aug 25 at 15:01
Could a spaceship be "charged" with kinetic energy instead of having to be propulsed?
Awarded Aug 24 at 12:08
Red color in the nozzles of Soyuz-2 rocket engines RD-107 and RD-108, is it only a decoration?
Awarded Aug 24 at 2:12
What is the minimal TWR of Falcon 9 booster right before touchdown?
Awarded Aug 23 at 23:55
What is the "mass" of a Lagrange point?
Awarded Aug 23 at 14:41
Are all modern astronauts at least passable phlebotomists?
Awarded Aug 23 at 2:32
Why is it not concerning from a cost perspective to have so many engines on Starship?
Awarded Aug 21 at 17:30
Mass of food per astronaut per year for an extended deep space excursion?
Awarded Aug 20 at 18:17
Were Nixie tubes used by a space program?
Awarded Aug 20 at 17:12
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