Earth-sized 'lava world' discovered

A doomed "lava world" with a similar mass and density to that of Earth has been discovered orbiting a star 400 light-years away. Observations suggest the planet, named Kepler 78b, is composed mostly of rock and iron, much like our own planet. via Pocket http://www.bbc.co.uk/news/science-environment-24748601#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa