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Astronomy
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John's user avatar
John
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  • Member for 4 years, 1 month
  • Last seen more than 4 years ago
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Top posts
question
3
Gravity on Mercury's highest elevation?
Nov 9, 2020
question
2
Are ocean water planets at Mars' atmospheric pressure possible?
Nov 19, 2020
question
1
Local atmospheric pressure and surface gravity in Jezero crater?
Nov 22, 2020
answer
1
Are any Pluto-sized objects remaining to be discovered in the Kuiper Belt?
Nov 14, 2020
question
1
Positions of planets before Christ?
Nov 12, 2020
question
1
Are there any known low-inclination trans-Neptunian objects?
Nov 13, 2020
question
0
Why are event horizons described in Schwarzschild radii rather than diameters, and either way can they change equator to pole?
Nov 10, 2020