What if NASA's OSIRIS-REx asteroid-sample capsule crashes to Earth this weekend?
The descent capsule of NASA's OSIRIS-REx asteroid-sampling mission is supposed to touch down softly under parachutes on Sept. 24. If it crashes, however, the agency has a backup plan.
United States Don Brownlee Dante Lauretta Richard Witherspoon Sandra Freund University Of Washington
Source: yahoo.com