OSIRIS REx nasa spacecraft bennu asteroid sampling lockheed martin
Artist's illustration of NASA's OSIRIS-REx probe sampling an asteroid.
  • NASA's OSIRIS-REx has been traveling for seven years to get an asteroid sample to Earth.
  • It landed on the Bennu asteroid in 2020 and collected the sample but still had a long way home.
  • Check out its 3.86 billion-mile journey from launch to asteroid sample landing in the photos below.

NASA's OSIRIS-REx delivered an asteroid sample — the largest ever — to Earth on Sunday. 

The spacecraft had traveled 3.86 billion miles in space to complete its main objective.