There's also the possibility that the planet could support lifeforms. It's located in the "Goldilocks" zone in its respective solar system, and therefore has the right gravity and light conditions to support lifeforms.
However there is one thing - the planet doesn't rotate and therefore it's always day on one half and always night on the other. In addition, it only takes about 37 days to rotate around its sun.
The idea that there could be extraterrestrial beings has long enthused those who love outer space. However, until now there was no PROOF that such life form existed. The new planet discovered 2010 planet Gliese 581G gives us hope that it exists.