There was a recent discovery from European astronomers showing they have likely found an Earth-like planet in another solar system. Since light from neigboring stars usually drowns out the light from any planet, we have a hard time trying to find extra-solar planets. Because of this, the astronomers used a method of observation where they monitored the "wobble" of the system's star related to the gravitational pull of the planet. From this, they were able to surmise quite a bit of knoweldge about this planet.

Basically, they estimate it to be about 50% larger than Earth and circling a red dwarf star (a third the size of our sun) about 20 light years away. It is relatively close to its star thus one year on that planet is only 13 Earth days. However, due to the fact that the planet's star is so cool, the planet's mean temperature is in a range that would support liquid water and possibly life (as we know it).

Obviously, this is a huge find. Could this planet possibly support life like ours? Would we be able to survive on a planet like this? Could our bodies survive on a world that had twice the gravitational pull as our own? Everything would weight twice as much.

I think I'd be able to survive if I was transplanted to this new planet, but I figure there would be some who would not be able to. It would be almost like a massive and quick form of natural selection whereby the people that were in good physical condition would survive. Future generations would then learn to adapt. But that's just a theory.