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Space Exploration
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59
What "actually" happens at T-minus-0
Nov 30, 2016
48
Why does the SpaceX Falcon 9 rocket do a 180 flip for reentry?
Aug 23, 2016
42
Have we attempted to experimentally confirm gravitational time dilation?
Nov 21, 2016
41
What is a "suicide burn"?
Jul 27, 2015
35
How could a 90 m/s delta-v be enough to commit the space shuttle to landing?
Sep 16, 2015
32
If we build a space elevator from Earth surface to GEO, could I step off it at GEO and remain in GEO?
Aug 12, 2014
30
What is the farthest a spacecraft has traveled away from earth?
Dec 3, 2013
26
Was the Apollo 13 CM guidance computer fully shut down?
Oct 26, 2013
23
Why don't we use catapults to get to space?
Sep 29, 2014
22
Did Sputnik 1 have attitude control?
Oct 14, 2016
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Should we be more aggressive in handling conspiracy theory answers to unrelated questions?
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Who has the ability to delete other people's comments