Planet hunters find Earth-like twin beyond the solar system

For the first time, scientists have found a planet beyond the solar system that not only is the same size as Earth, but has the same proportions of iron and rock, a key step in an ongoing quest to find potentially habitable sister worlds.

NASA’s Kepler discovers ‘invisible’ world

Astronomers believe that they have found an invisible world after detecting a planet.

Five exoplanets identified by Kepler space telescope: NASA

Five new exoplanets -- earth-size
planets in the habitable zone of sun-like stars -- have been
discovered by NASA scientists.

Electronic glitch to halt NASA’s planet hunting mission

NASA’s Kepler mission, which would search for planets around other stars, is unlikely to detect any Earth-like exoplanets before 2011 due to an electronic glitch.