This image of asteroid Bennu is made up of 12 PolyCam images collected on Dec. 2 by the OSIRIS-REx spacecraft from 15 miles away. (Credit: NASA/Goddard/University of Arizona)
OSIRIS-REx has been busy ever since it arrived at the asteroid Bennu on December 3. The latest updates from NASA reveal that the space rock is porous, blue, and covered in massive boulders. More excitingly, they discovered evidence that Bennu's minerals interacted with water at some point in its distant past. During a press conference today at the American Geophysical Union's fall meeting, NASA's OSIRIS-REx team revealed the first results from their spacecraft's ongoing mission. The craft reached its target early this month, and is currently observing the asteroid with its instruments as scientists decide where to land. Some of the initial data from the craft indicate that Bennu's surface contains clay filled with hydrated minerals, indicating that they came in contact ...