Credit: Aritist's concept of interstellar object 3I/Atlas NASA/SWNS
NASA has discovered a massive interstellar comet named 3I/ATLAS blazing through our solar system, marking only the third known object from beyond our cosmic neighborhood. Detected by the ATLAS telescope in Chile, the comet spans roughly 12 miles—larger than its predecessors, Oumuamua (2017) and 21/Borisov (2019). Scientists traced its path back to June 14 and believe it originated from the direction of the constellation Sagittarius, though its exact origin remains unknown.
Currently near Jupiter and traveling at 37 miles per second, 3I/ATLAS is about 416 million miles from the sun. It features a glowing tail and a cloud of gas and dust around its nucleus. The comet will pass within 150 million miles of Earth in October but poses no threat. It’s visible with a small telescope through September and will reappear after passing the sun in December. NASA emphasizes it’s a natural object, not artificial, but its presence is thrilling for astronomers.