A Second Earth!

   How truly incredible this find could be. It always amazes me the genius of an astronomer today. The possibility to see and find a planet extremely far away. Gliese 581g has been being observed for more than 11 years. It really is amazing how we know the temperature or that it seems to have water on it from the distance we are observing it from.
   The planet is 20 light years away from us and orbits the red dwarf star gliese 581. It orbits the star every 37 days, has rocky regions, and an atmosphere. This sounds close to our Earth. The only problem I see is it is locked tidally to it's sun, wich means it doesn't rotate. It has a constant darkside and a constant light side. Either way this is a tremendous advance forward for space and mankind.