In the year 2018, NASA's OSIRIS-REx will rendezvous with the asteroid Bennu, a 1,614-foot near Earth object that might just collide with our world at some point in the 22nd century. OSIRIS-REx will explore this carbonaceous wanderer, but it will also bring a portion of it back home. Join Robert and Christian as they discuss the mission and chat with space scientists Dr. Amy. A Simon about OSIRIS-REx .