Discovery of earth-like extra-solar planets

Discovery of earth-like extra-solar planets

Weak Signal's progress: fully-fledged

This Weak Signal came from: 
Research and technology organisations

The source of this Weak Signal: 
http://www.sciencedaily.com/releases/2010/10/101028141430.htm

When did the Weak Signal manifest ? 
2005-now

Weak Signal's description 
As of December 2, 2010, 505 extra-sols planets were detected. Most are giant planets (like Jupiter), but recently several relatively lightweight exoplanets, only a few times more massive than Earth, have also been detected, thus increasing the likelihood of other habitable planets beyond the Solar System.