Comet news, features and articles

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

New images taken with the Gemini North telescope in Hawaii confirm that the interstellar comet 3I/ATLAS has gotten brighter and greener since its close flyby of the sun in October.

NASA and ESA both shared new images of the interstellar comet 3I/ATLAS this week, as the agencies gear up for the mysterious object's closest approach to Earth on Dec. 19.

Stunning new photos show the pieces of the "other ATLAS," C/2025 K1, breaking apart in space after the golden comet suddenly exploded earlier this month.

NASA's treasure trove of new comet 3I/ATLAS images provides hotly anticipated views of the interstellar visitor, including from Mars and the sun.

NASA's highly anticipated comet 3I/ATLAS images have been released, with a space agency official shooting down alien rumors and stressing that the interstellar visitor is a comet.

NASA will finally share long-awaited images of interstellar object 3I/ATLAS taken during the comet's close flyby of Mars. A live stream has been set for today (Nov. 19).

An incredible new image shows the multi-tailed alien comet 3I/ATLAS shooting past a distant galaxy in the night sky. The stunning scene is a reminder of the object's perfectly natural interstellar origins, photographer Satoru Murata claims.

Scientists from the European Space Agency have significantly narrowed down the trajectory of the interstellar visitor 3I/ATLAS thanks to data from the alien comet's recent flyby of Mars, allowing for more accurate future observations.

New images show that comet C/2025 K1 (ATLAS) has fragmented after passing its closest point to the sun, ahead of its close approach to Earth later this month. This is not the interstellar comet 3I/ATLAS.