Since its arrival this summer, scientists have been racing to understand as much as possible about 3I/ATLAS, the third recorded visitor from outside our solar system. A breakthrough study published on Sept. 30 has scientists exclaiming, “OH!”: the first detection of hydroxyl gas (OH) from an interstellar object. The finding provides a crucial touchstone for Continue reading "Comet 3I/ATLAS shows signs of water" The post Comet 3I/ATLAS shows signs of water appeared first on Astronomy Magazine .