Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.

The interstellar comet 3I/ATLAS has just done something no visitor from another star system has ever been caught doing: it lit up in X-rays. As its elongated orbit carries it through the inner solar ...

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way ...

As the mysterious interstellar comet 3I/ATLAS speeds towards its perihelion on 29 October 2025, NASA's Asteroid Terrestrial-impact Last Alert System (ATLAS) remains on watch — a reminder of humanity's ...

Add Yahoo as a preferred source to see more of our stories on Google. This animation shows the observations of comet 3I/ATLAS when it was discovered on July 1, 2025. The NASA-funded ATLAS survey ...

Add Yahoo as a preferred source to see more of our stories on Google. Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.

Discovery: On July 2, 2025, astronomers confirmed Comet 3I/ATLAS, marking only the third interstellar object (ISO) ever detected passing through our Solar System, after 1I/ʻOumuamua (2017) and ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar system. When you purchase through links on our site, we may earn an affiliate ...

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On Oct. 29, at the same time 3I/ATLAS achieved perihelion, astrophotographer Dan Bartlett snapped a stunning shot of C/2025 K1 from June Lake in California. The image shows the comet with a distinct ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the third known interstellar comet ever spotted. When scientists turned NASA’s ...