Nasa spacecraft finds water in search for origins of life on asteroid

A Nasa spacecraft that just arrived on an asteroid has already made its first big discovery: ingredients for water. Scientists hope that the OSIRIS-REx spacecraft will shed light on the mysteries of Bennu, an asteroid the size of a skyscraper that could hold clues to the origins of life on Earth. The craft only arrived at the asteroid in recent days but the discovery of water is a major breakthrough that scientists hope can be matched by more discoveries in the future. It was found when OSIRIS-REx flew close to the asteroid and picked up traces of hydrogen and oxygen molecules in its rocky surface. The probe, on a mission to return samples from the asteroid to Earth for study, was launched in 2016.