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

This image provided by Mike Olason shows the newly-discovered comet SWAN on April 6, 2025. (Mike Olason via AP) ...

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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 ...

The comet was first spotted by an amateur astronomer looking through SOHO spacecraft data. The newly discovered comet is already putting on a show for amateur astronomers with telescopes at the ready.

Once mistaken for a fuzzy star cluster, the stunning Squid Galaxy—formally known as Messier 77—has transformed in the eyes of ...

Today's rather aquatic-themed NASA/ESA Hubble Space Telescope image features the spiral galaxy Messier 77, also known as 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 ...

A freshly-discovered comet has lots of skywatchers training their telescopes on the dawn sky, but pretty soon the new Comet SWAN25F will flip to our evening sky, and allow a lot of us to get a ...

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 ...