OSIRIS-REx: Above and Beyond

The video discusses NASA's Osiris Rex mission to collect samples from asteroid Bennu. It highlights the mission's historical significance as NASA's first asteroid sample return mission and its potential to bring back the largest space sample since the Apollo missions. The spacecraft has set two Guinness World Records for orbiting the smallest body and achieving the closest orbit. Osiris Rex's advanced imaging capabilities have provided unprecedented views of Bennu. The mission faced challenges due to Bennu's rocky surface, leading to the use of innovative navigation techniques like natural feature tracking. The mission aims to return a sample to Earth by 2023.

Explain the natural feature tracking method used by Osiris Rex.

What are the expected outcomes of the Osiris Rex mission by 2023?