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Life bearing planets may be in millions

Last Updated: Friday, May 11, 2012, 13:57

Researchers say a few hundred thousand billion free-floating life-bearing Earth-sized planets may exist in the space between stars in the Milky Way.

Earth-sized planets could be common

Last Updated: Friday, October 29, 2010, 09:34

It may be possible that one in 4 stars similar to the Sun could be orbited by Earth-size planets.

Scientists estimate Earth-sized planets could be common

Last Updated: Friday, October 29, 2010, 09:23

The researchers found larger numbers of smaller planets than of larger planets.