U.K. and German Astronomers announced this week that they have discovered a new “super Earth” planet that could, conceivably, have an Earth-like climate. The planet exists in the habitable zone of a nearby star called HD 40307 and is part …

NASA has supplied these images of what they are calling GJ 1214b. Others have adopted the name “water world” to describe the watery planet. Discovered in 2009, it was one of the first planets identified that actually has an atmosphere. …