Correct in saying Luna has a slight atmosphere.About one billionth thinner than Earth's.
Martian atmosphere is thinner as well.Atmospheric pressure,or lack of it,keeps water from existing as a liquid on the surface.
Any attempt to terraform Mars must include as a priority raising atmospheric pressure,else created O2 just escapes right through.
One good reason to repair rather than replace sattellites is to reduce and control the amount of "space junk." Far better in my view to dispose of outdated sattellites by shoving them into the sun,or if small enough,down to earth.This will not happen with geosyncronous sattellites,but the shuttle just can't reach them.
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May've been the losing side. I'm still not convinved it was the wrong one.
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