Quote:
Originally Posted by protheus
Every night Earth is hit by tons of rocks, most of them burn in the atmosphere, but on the Moon (no atmosphere) every little projectile wandering around at speeds superior to Mach 10 can collide with the modules.
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But orbital space stations consisted of the same habitation modules. Therefore, they are also vulnerable for space junk or rocks. Now we have more than 10 years of active human flights onto low-Earth orbit without serious accidents caused by space junk.