Massive Super-Earth

Has the likelihood of alien life existing just become a lot more likely? Astronomers at the Harvard-Smithsonian Centre for Astrophysics announced this week that they have found what's being dubbed the "Godzilla of Earths" - it's a rocky planet orbiting a distant star over 500 light years away. But it's over twice the diameter and 17 times the mass of the Earth. So it's exciting for two reasons - first, space scientists had thought that planets could only be that big if they were made of gas, like Neptune or Jupiter, rather than rock, like Earth; and, second, the star this planet is orbiting is... Like this podcast? Please help us by supporting the Naked Scientists