The Albert Einstein's General Relativity allows NASA [with the help of my viXra paper, care to look?] to send astronauts almost instantly to distant stars and galaxies. Even allows time-travel into any moment of past or future: "the time-travel paradoxes are becoming solved by themselves" (Quote...
This is a spin-off of "end times". Our discussion about space travel has become off topic there, so we'll continue here.
In general, what do you think of space travel and living in space or on other heavenly bodies other than earth?