A stray comet from another star is swinging past Earth. Discovered over the summer, the comet known as 3I/Atlas will pass ...

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

Scientists say the colour shift in interstellar comet 3I/ATLAS is due to gases in the comet's coma reacting to solar heat.

In the spirit of the season, the interstellar comet 3I/ATLAS is changing color as it leaves the sun behind — shifting from a ...

Little Foot is a near-complete Australopithecus skeleton — the most complete ever discovered — from South Africa. Researchers ...

Tracking comets accurately is hard. A new effort with the U.N. and NASA aims to better chart these visitors using 3I/ATLAS.

Gemini North captured new images of Comet 3I/ATLAS after it reemerged from behind the sun on its path out of the solar system ...

He highlighted several other features he considers unlikely for a natural object, including the comet's trajectory . Loeb ...

Comet Lemmon was discovered in January 2025 and made its closest approach to Earth in late October 2025. But by November 2025 ...

New images taken by the Hubble Space Telescope and a Jupiter-bound mission showcase interstellar comet 3I/ATLAS ahead of its ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...