A comet (or asteroid) likely caused the Tunguska Event in 1908 in Russia, and a comet fragment likely triggered the rapid ...

For years, we thought a giant comet object smacked into Earth 66 million years ago, signing the collective death certificate ...

A newly discovered comet has been spotted in the night sky. Comet C/2025 F2 (SWAN) is currently visible in binoculars and is expected to reach its brightest on May 1, 2025. Comet SWAN25F ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. When a new comet ...

NEW YORK — A newly discovered green comet tracked by telescopes has likely broken apart as it swung by the sun, dashing hopes of a naked-eye spectacle. Comet SWAN, hailing from the Oort Cloud ...

ESA/Hubble & NASA, L. C. Ho, D. Thilker Today's rather aquatic-themed NASA/ESA Hubble Space Telescope image features the ...

A glowing green comet discovered last month likely did not survive its recent trip past the sun, leaving it impossible to see with the naked eye. Comet C/2025 F2, also known as Comet SWAN ...

NEW YORK — A newly discovered green comet tracked by telescopes has likely broken apart as it swung by the sun, dashing hopes of a naked-eye spectacle. Comet SWAN, hailing from the Oort Cloud ...

A Green Comet Likely Is Breaking Apart and Won't Be Visible to the Naked Eye NEW YORK (AP) — A newly discovered green comet tracked by telescopes has likely broken apart as it swung by the sun ...