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 ...

Atomic nickel vapor was observed to exist in the environs of comet 3I/ATLAS at 3.88 AU, far away, when compared to the Sun, ...

Interstellar comet 3I/ATLAS made its closest approach to Earth on Friday, Dec. 19. The comet will pass within about 170 million miles of our planet and poses no danger. While not visible to the naked ...

(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 ...

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

A newly discovered visitor from the outer solar system is racing toward the inner planets, and astronomers say it could put ...

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 ...

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 ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. CAPE CANAVERAL, Fla. (AP) — A stray comet from another star swings past Earth this week in one ...

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 ...