SIGNS of an alien planet that’s about the same size as Earth have been picked by up a Nasa telescope. Scientists say it might ...
When astronomers announced Kepler-452b, they were not just adding another distant world to a growing catalog. They were pointing to a planet that orbits a star much like our own, in a region where ...
Jupiter’s moon Europa has long looked like a frozen cue ball, its bright shell of ice hiding a global ocean that many astrobiologists see as one of the most promising places for life beyond Earth. New ...