Astronomers have learned lots about the universe − but how do they study astronomical objects too distant to visit?
Telescopes at the Cerro Tololo Inter-American Observatory near La Serena, Chile. Guillaume Doyen/CTIO/NOIRLab/NSF/AURA, CC BY Luke Keller, Ithaca College NASA’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 […]