There is no immediate danger, and if my friends are not here then they must surely be safe in our own home. I would prefer if we were together, but it is not the first time that we have been separated and will not be the last.

[Missions call for that on a fairly regular basis. It just meant that when they did return home the reunion would be that much nicer.]

I did not know that humans made their home on Mars! It sounds very impressive.