Top 5 potentially habitable exoplanets… slightly alarming we're looking for another planet so soon. Let's fix our home first before we go retail shopping shall we everyone? I'm willing to pick up a hammer and some trash!
Three Super Earths Discovered in Gliese 667C. The view from the exoplanet Gliese 667Cd looking towards the planet’s parent star (Gliese 667C). In the background to the right the more distant stars in this triple system (Gliese 667A and Gliese 667B) are visible and to the left in the sky one of the other planets, the newly discovered Gliese 667Ce, can be seen as a crescent. This is the first system found with a fully packed habitable zone. Credit: ESO/M. Kornmesser.
Artistic representation of all the five known potential habitable worlds including now Gliese 581g, the best candidate for an Earth-like exoplanet so far. All of these planets are superterrans (aka Super-Earths) with masses estimated between two and ten Earth masses. Numbers below the planet names correspond to their similarity with Earth as measured in a scale from zero to one with the Earth Similarity Index, one being identical to Earth.