Telescopes at the Cerro Tololo Inter-American Observatory near La Serena, Chile. Guillaume Doyen/CTIO/NOIRLab/NSF/AURA, CC BYNASA’s OSIRIS-REx spacecraft flew by Earth on Sept. 24, 2023, dropping off its sample of dust and pebbles gathered from the surface of near-Earth asteroid Bennu. Analysis of this sample will help scientists understand how the solar system formed and from what sorts of materials. Scientists will begin their analysis in the same facility that analyzed rocks and dust from the