What happens to people outside Earth on the second coming? When Jesus returns, or the rapture,etc, and we having the events surrounding it, the bible says the whole earth will see it, day or night. Does the bible mention what happens to humans not on Earth, from space stations to the Moon and Mars (as current plans want to see humans on the Moon and on Mars before 2050.

Reference: Luke 31:35 (ESV) "For it will come upon all who dwell on the face of the whole earth."
Don't worry you aren't going too miss it even if you are on Mars! "The whole earth" here refers to all of creation. The one who created those places is hardly going to forget to check for inhabitants. He knows the hairs on our head by number and every star by name.