A rare long-period comet, C/2025 R3 (PanSTARRS), is currently visible in southern skies, offering a brief observing window before it fades from view. The object, which originates from the distant Oort ...
Comet C/2025 R3 is already drawing attention—and offers a rare chance to understand what separates an ordinary comet from a truly “great” one. Comet C/2025 R3 (PanSTARRS) hangs above Bietschhorn in ...
Learn about the latest NASA and ESA images of Comet 3I/ATLAS, showing its brightness and tails of dust and plasma. The fanfare surrounding Comet 3I/ATLAS is far from quieting down, as the mysterious ...
An interstellar comet that originated outside our solar system has just made its closest pass to the sun, brightening dramatically and rapidly as it did so. The reason for the sudden extreme activity ...
Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. This weekend offers the last best chance to see the two ...
Something strange is happening at the edge of our solar system. An interstellar visitor, comet 3I/ATLAS, has just reappeared from behind the sun, and it is not behaving like any comet scientists have ...
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