Subject: Re: Richard Feynman explains why Mars a one way trip
Yep. I'm also aware that sometime after that, the universe itself will die (either Big Crunch or Cold Death). The time scales of both are enormous. Also, when the Sun dies, Mars goes, too. Won't matter if we managed to tech our way into a colony on Mars at that point.

That's why the true ideal place for humans to colonize is one of the "water" moons of Jupiter or Saturn. They're far enough out to escape the death of the Sun. Still have to deal with the low gravity problem however!