[HIGHLIGHTS] They believe that the asteroid Bennu may be a fragment of an ancient ocean world

NASA spacecraft took 200 million samples from the asteroid Bennu. The asteroid contains a substance never seen before.

Samples have a phosphate crust at a concentration detected on ocean worlds such as the moon Enceladus. What has been discovered will be detailed at next month's Lunar and Planetary Science Conference in The Woodlands, Texas. "We're going to be busy for a long, long time," principal investigator of OSIRIS-REx Dante Lauretta said. "Starting in March all this will be revealed to the world," she said.