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Space Exploration
Johnny Robinson's user avatar
Johnny Robinson's user avatar
Johnny Robinson's user avatar
Johnny Robinson
  • Member for 7 years, 11 months
  • Last seen more than 2 years ago
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38
Flung debris in lunar landing
Jan 3, 2017
38
How deep could a lunar mine go?
Oct 19, 2017
26
Why aren't rockets built with truss structures inside their fuel & oxidizer tanks to increase structural strength?
Aug 13, 2019
20
After Crew Dragon launch abort, was Falcon 9's detonation intentional?
Jan 20, 2020
16
Why will the BFS reenter broadside rather than engine first?
Apr 10, 2018
14
Constant lunar sub-surface temperature
Jan 26, 2017
12
For a launch, how is safe viewing distance determined?
Feb 4, 2018
12
How (actually) do sub-cooled propellants reduce cavitation within turbo pumps and make feed easier?
Oct 5, 2016
12
Titan vs Mars for colonization
Mar 2, 2019
12
What are the advantages and disadvantages of using either liquid hydrogen or liquid methane based rocket fuels?
Jun 15, 2022