The interstellar comet 3I/ATLAS is leaving our solar system for good. Here's what to know about its journey and NASA's observations.

Interstellar comet 3I/ATLAS has steadily been making its exit ever since it had a rendezvous at the end of October with the sun.

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

New photos captured by NASA's Curiosity rover show that Mars' giant, spiderweb-like "boxwork" features are covered in tiny, never-before-seen nodules that bear a striking resemblance to arachnid eggs.

The ESA/NASA Solar and Heliospheric Observatory (SOHO) captured comet Comet 96P/Machholz latest flyby of the Sun. See a time-lapse of the footage here. Credit: ESA/NASA/SOHO | edited by Space.com's St ...

Comet C/2022 E3 (ZTF) could be visible in dark skies with the naked eye if it continues to brighten. NASA explains how to see it. Credit: NASA/JPL-Caltech ...

Comet 3I/ATLAS was full-on erupting into space in December 2025, after its close flyby of the sun, causing it to significantly brighten. Even water ice was quickly sublimating into gas in ...

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 ...

The infrared space telescope also detected water vapor, carbon dioxide and organic compounds streaming from the departing comet two months after it made its closest approach to the sun. When you ...

A newly discovered comet has astronomers excited, with the potential to be a spectacular sight in early April. C/2026 A1 (MAPS) was spotted by a team of four amateur astronomers with a remotely ...

The ‘Pizzagate’ conspiracy theory has spurred a flurry of online activity again. The reported mention of ‘pizzas’ in ...

KYIV, Ukraine (AP) — On the edge of the Ukrainian capital, Kyiv, volunteers ladle hot soup into plastic containers as residents wrapped in heavy coats queue for a meal they cannot cook at home. Yuliia ...