Comet C/2025 R2 (SWAN) was discovered on Sept. 10 by Ukrainian amateur astronomer Vladimir Bezugly. It has brightened ...

Comet C/2025 A6 (Lemmon) is this year’s brightest comet visible from Earth—an icy relic from the solar system’s origins that ...

A comet discovered earlier this year, now just bright enough to be visible to the naked eye, is poised to be among the top ...

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail ...

To photograph the comet, Alton Spencer left Danbury, finding darker and elevated spots in Bridgewater and Warren.

This year has been remarkable for astronomy enthusiasts, with the upcoming Comet Lemmon (C/2025 A6) set to grace the night ...

Anyone who studies planetary formation would relish the opportunity to get a close-up look at an interstellar object. Sending ...

The comet, which continues its journey through the solar system, has been observed by space telescopes near Earth.

An interstellar visitor is zipping through the Milky Way, and a team of Michigan State University researchers is keeping ...

Since 1 July 2025 when the comet was first discovered, NASA scientists have been working to collect as much information as ...

Interstellar comet 3I/ATLAS — just the third such object ever confirmed to have entered our solar system — flew past Mars ...