Interesting. I do know they have special shielded closet they get into when a bad solar flare(s) are detected.
It sucks that mars is so far away. It would be technically much easier to colonize on mars than the moon but the amount of time spent in open space makes it more dangerous to get there.
A martian day is comparable to earth. There is at least some atmosphere so suits and habitats could be built for minimum pressurization. Daytime temperatures can be warm enough to require minimal heating.