NASA’s OSIRIS-REx spacecraft has finally arrived at asteroid Bennu
Scientists hope the probe will reveal if such space rocks helped kick-start life on Earth

TAG, YOU’RE IT The OSIRIS-REx spacecraft has caught up with asteroid Bennu, shown in an image taken November 16. The probe will use a touch-and-go maneuver to grab up to two kilograms of sand and dust from the space rock.
University of Arizona, Goddard Space Flight Center/NASA