
Nobody knows if NASA’s OSIRIS-REx can pull off its daring asteroid-sampling maneuver
NASA’s OSIRIS-REx spacecraft first arrived at the large space rock known as Bennu late last year, and it’s spent the first few months of 2019 observing its new space companion and teaching NASA more about the rock’s surface. Unfortunately for NASA engineers, the asteroid’s surface is nothing like what they assumed it would be, and …