At roughly 250,000 kilometers per hour, comet 3I/ATLAS did not merely pass through the inner solar system it tore through it, ...

We've watched it speed through the solar system using the most powerful telescopes in human history. We've studied its light with probes whipping around the sun and robots marooned on Mars. Countless ...

An interstellar comet that originated outside our solar system has just made its closest pass to the sun, brightening dramatically and rapidly as it did so. The reason for the sudden extreme activity ...

A rare interstellar comet reaches its closest point to the sun on Wednesday and Thursday — and it's exciting astronomers around the world. Comet 3I/ATLAS is just the third confirmed interstellar ...

The Hubble Space Telescope's newest images of 3I/ATLAS confirm the presence of its sunward anti-tail, contrary to the usual ...

Tune in on Nov. 18 to witness detailed telescopic views of interstellar comet 3I/ATLAS as it races headlong away from the sun on an escape trajectory from our solar system, courtesy of a livestream ...

Even as a brilliant, naked-eye comet slices through Earth's sky (cheers, Comet Lemmon!), the most famous object in the solar system right now is hidden on the far side of the sun: the interstellar ...

Interstellar comet 3I-ATLAS is a rare cosmic visitor that may be older than our Sun, offering scientists a unique glimpse ...

NASA and Gemini North reveal stunning new images of interstellar comet 3I/ATLAS glowing with an eerie green light. Discover ...

The NASA/ESA Hubble Space Telescope reobserved interstellar comet 3I/ATLAS on 30 November with its Wide Field Camera 3 instrument. At the time, the comet was about 286 million kilometers from Earth.

New analyses from SOHO and the Green Bank Telescope indicate interstellar comet 3I/ATLAS behaved like a normal comet as it ...