GJ 1214b might be more like Earth than any other known exoplanet, but given the murky reporting it's hard to tell. I'd say the most Earthlike exoplanet discove

GJ 1214b might be more like Earth than any other known exoplanet, but given the murky reporting it's hard to tell. I'd say the most Earthlike exoplanet discovered so far is CoRoT-7b, discovered a few months ago. It's about five times more massive than Earth, but has a similar density, implying it should consist mostly of rock. http://spacefellowship.com/2009/09/16/smallest-exoplanet-is-shown-to-be-a-solid-rocky-world/ http://spacefellowship.com/2009/09/16/smallest-exoplanet-is-...