Scientists at the University of California in Santa Cruz are saying they have found a planet which seems to have all of the requirements of sustaining or producing life. The planet, Gliese 581g, is the first planet discovered beyond Earth that has the possibility of life.
What does this mean for humanity? I'm not really sure, but I do know that if life is proven to exist, life here will alter to at least some degree. Will the life be intelligent? Or will the life we discover simply be bacteria or microbes? More study and analyzing of the data the researchers have will be put through the turns until we come out with a definite answer.
So the age old question of "Are we alone?" has come to the forefront once again and we are closer to figuring it out than we have been in any point of history. I, for one, am excited.