Comet 3I/ATLAS can cover New York City-Beijing distance in 3 minutes; here’s how fast the interstellar visitor is

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Scientists are closely monitoring Comet 3I/ATLAS, an interstellar object. Discovered in July 2025, it's moving at record speed. The comet will be closest to the Sun in late October 2025. Recent photos suggest a color change, possibly turning green. This transformation may be due to its proximity to the sun. Astrophotographers captured these images during a lunar eclipse in Namibia.