Why is near-Earth asteroid Bennu's 'soft surface' puzzling NASA scientists?
Image Credit: NewsBytes
Two years after its OSIRIS-REx spacecraft collected samples from asteroid Bennu, NASA has revealed something astonishing about the asteroid's surface. According to the space agency, the particles making up Bennu's surface are so loosely packed and lightly bound that a person stepping onto the asteroid would feel very little resistance. Bennu was first discovered by scientists in 1999.