Researchers discover a system with three Earth-sized planets

The Instituto de AstrofĂ­sica de Canarias (IAC) and the University of Oviedo present today the discovery of two new planetary systems, one of them hosting three planets the same size as the Earth.

Weird exoplanetary system dances to the beat

If there's one thing to be said for the Kepler mission, it's certainly turning up some very strange new worlds.