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Questions regarding surface features of celestial bodies.

8 votes
1 answer
955 views

What's the deepest a trench could theoretically be dug on Mars?

Given the physical characteristics of Mars (the crust's thickness, its composition, gravity, etc.) how deep a trench (that could be expected to continue to exist indefinitely, or rather, for periods o …
Pelinore's user avatar
  • 712
10 votes
1 answer
966 views

Is there any reason Cyanobacteria or Lichens can't survive on Mars?

According to this article "Mars atmosphere is supersaturated with water" & according to answers to this physics stack exchange question conditions do exist on the surface of Mars where fluid water can …
Pelinore's user avatar
  • 712