NASA has confirmed that its OSIRIS-REx space probe has left the asteroid Bennu after more than two years of study. In fact, OSIRIS-REx reached Bennu on December 3, 2018. In addition to the data collected with its instruments, OSIRIS-REx will bring back to Earth a capsule containing the Bennu samples collected on October 20, 2020. The return journey will be long because the arrival is scheduled for September 24, 2023.