> We already have a colony in low earth orbit. It's a little flying shack, not a "colony". Anyway, it's not self-sustainable, which is the main issue. > Also,

> We already have a colony in low earth orbit. It's a little flying shack, not a "colony". Anyway, it's not self-sustainable, which is the main issue. > Also, by colonizing mars we will only have 2 points of failure. It appears that you've never done backups.