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

Captured by the Gemini Multi-Object Spectrograph on November 26, 2025, this striking green hue replaces the comet's ...

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

The interstellar comet 3I/ATLAS, ejected from a distant star system, is now revealing the alien building blocks of other ...

3I/ATLAS will soon be approaching Earth at its nearest to the only known planet with life teeming. On its closest flyby on ...

Interstellar comet 3I/ATLAS has once again baffled scientists and astronomers with its increasing brightness and striking ...

Harvard physicist Avi Loeb raises concerns as interstellar object 3I/ATLAS makes its closest pass to Earth later this month.

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

Interstellar object 3I/ATLAS nears Earth, showing a rare anti-tail, changing brightness, and new clues about its origin, with ...

This rare interstellar visitor (C/2025 N1) is visible now! While too faint for the naked eye, amateur astronomers can easily ...

Light from the object takes 15 minutes to reach us, so its images are slightly delayed, News.Az reports, citing foreign media ...

The colour change reveals ancient carbon chemistry, offering rare insights into material formed beyond our solar system.