Interstellar comet 3I/ATLAS will soon reach its closest distance to Earth, so this may be our last, best chance to see this rare object before it heads back out into the universe, never to return. One ...

When 3I/ATLAS went round the back of the Sun as seen by Earth, the instant seemed as though it were a shut door. On October ...

(CNN) — An interstellar comet first spotted passing through our solar system in July is beginning its departure from our corner of the universe — but first it will fly by Earth, and scientists are ...

The breakup was caused by the extreme conditions near the Sun; during its latest approach, C/2025 K1 flew as close as 0.334 ...

Comet C/2024 E1, better known as Wierzchos, is skimming past the Sun in a tight, blazing turn that will fling it back toward ...

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory claims, but a comet.

The interstellar comet 3I/ATLAS makes its closest approach to Earth early Friday. Scientists have tracked the object since its July discovery and confirmed it is a comet, despite online speculation ...

This image, provided by NASA, shows the interstellar comet 3I/Atlas captured by the Hubble Space Telescope on Nov. 30, 2025, about 178 million miles (286 million kilometers) from Earth. (NASA, ESA, ...

A newly discovered comet has astronomers buzzing with excitement, with the potential to put on a spectacular show in early ...

Today is the day that astronomers, amateur stargazers and alien conspiracy theorists alike have been waiting for: interstellar comet 3I/ATLAS is as close to Earth as it will ever get. But lest you ...

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. (CNN) — The Hubble Space Telescope and ...