NASA’s press conference on the newly discovered Earth-sized planets has just concluded, and most of the time was spent reiterating what was in our earlier report. Most of the value of listening in ...

[Photo: NASA/Ames/JPL-Caltech] The Kepler space telescope must be NASA’s most prized possession right now. A few weeks ago, it found several possibly habitable planets in distant solar systems; now it ...

Astronomers have achieved a big milestone in the search for another Earth: the two smallest confirmed planets ever found orbiting another star... and they're both about the size of Earth! Artist's ...

The first terrestrial planets have been discovered by NASA’s Kepler Mission, which searches for planets between one half and twice Earth’s size in a relatively close region of the Milky Way. The two ...