GJ 1214b is 2.6 times Earth’s diameter and weighs seven times as much It was first discovered as part of the ground-based MEarth Project in 2009The observations by the Subaru telescope could help scientists find out more about the planet's birthplace and formation history Blue light observations of a super-Earth 40 light years from our planet suggest that it is a world with a thick, steamy water-rich atmosphere.Japanese astronomers used the Subaru telescope to observe planetary transits of the super-Earth, which is located at the centre of the Milky Way.Astronomers had previously confirmed that this alien world has a thick...