Space Exploration

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earned this badge 38 times.
What would happened if the ISS was depressurized while astronauts were sheltering?
Awarded Feb 6, 2021 at 15:16
How could aerodynamic forces break up the Challenger orbiter?
Awarded Dec 25, 2020 at 7:25
Why was the Shuttle's LOX tank on top of the LH2 tank, since that makes it more top-heavy?
Awarded Apr 14, 2020 at 14:05
Could Earth-lunar flybys be repeated consecutively without the use of propellant?
Awarded Aug 20, 2019 at 20:50
Would an ionocraft have better or worse performance in the upper atmosphere?
Awarded Oct 2, 2018 at 11:10
What data are used to do these 3D asteroid renderings?
Awarded Sep 5, 2018 at 10:05
Long range laser communication beam divergence angle values?
Awarded May 28, 2018 at 23:45
What does the BackFlip lunar cycler do in its pass by Earth?
Awarded Dec 3, 2017 at 1:13
Does the Venusian atmosphere's "super rotation" actually rotate?
Awarded Nov 4, 2017 at 10:09
Disposition of the Oxidizer Tank in Rockets with Autogenous Pressurization
Awarded Aug 27, 2017 at 3:38
How is 80 to 150 days to Mars possible at 6 km/s TMI Delta V?
Awarded Oct 4, 2016 at 4:38
How far downrange would a reusable Falcon 9 first stage land (without fly-back)?
Awarded Apr 11, 2016 at 19:32
Are there any promising next-generation space station cooling technologies?
Awarded Nov 4, 2015 at 17:47
Climbing at terminal velocity minimizes losses? But why? And "of what"?
Awarded Oct 8, 2015 at 23:28
How are the symptoms of long-term exposure to microgravity similar to those of bedridden patients?
Awarded Jul 24, 2015 at 9:25
Nuclear thermal rocket specific impulse calculation uses 1 amu, is that wrong?
Awarded Feb 9, 2015 at 0:17
What kind of leak rates do modern habitat modules have?
Awarded Dec 24, 2014 at 12:39
Between a space elevator on Mars versus the Moon, which would have lower material strength requirement?
Awarded Dec 11, 2014 at 18:56
Did Biosphere 2 make any discoveries later used on manned space flight?
Awarded Aug 14, 2014 at 16:37
Are there propellant-less ways to balance at an unstable orbital point?
Awarded Mar 28, 2014 at 22:16
Are there any proposals to vacuum up gases in orbit for use as propellant?
Awarded Mar 9, 2014 at 11:35
Why do pressure fed engines have combustion instabilities?
Awarded Feb 22, 2014 at 17:32
If something "falls off" the L2 or L1 point, where will it go?
Awarded Feb 21, 2014 at 17:10
What is the range of strength for asteroidal materials?
Awarded Feb 19, 2014 at 18:07
Why don't 3-parachute descent systems collide and collapse?
Awarded Jan 24, 2014 at 20:05
What would the Δv cost of bringing the space shuttle external tank to orbit be?
Awarded Jan 5, 2014 at 6:23
What stability issues plague long artificial gravity cylinders?
Awarded Nov 10, 2013 at 12:54
Why does NASA intentionally spin space probes?
Awarded Oct 13, 2013 at 19:18
How to calculate Delta V for lunar flyby
Awarded Oct 5, 2013 at 18:32
What are the end-of-life options for large classified satellites?
Awarded Sep 2, 2013 at 22:15
How can I derive an mass/size estimate of an asteroid from JPL parameters?
Awarded Aug 29, 2013 at 21:50
How do rockets prevent rear-ending after stage seperation?
Awarded Aug 26, 2013 at 11:27
Can fish really live in microgravity without water?
Awarded Aug 15, 2013 at 22:42
What is the total mass sent into orbit over all history?
Awarded Aug 15, 2013 at 0:47
Could the sun be used as a gravity assist outside the solar system (with current tech)?
Awarded Aug 10, 2013 at 19:01
Reason for space debris clustering in LEO
Awarded Aug 2, 2013 at 1:30
Vertical-takeoff, vertical-landing (VTVL) vehicle falling orientation
Awarded Jul 29, 2013 at 18:44
Do any launches bypass LEO?
Awarded Jul 23, 2013 at 16:03

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