Two ESA spacecraft, Hera and Europa Clipper, are poised to fly through the long tail of interstellar comet 3I/ATLAS, a new paper finds.

In OpenAI’s new Atlas browser, the Ask ChatGPT sidebar is moderately helpful at best. Sometimes, it’s confusingly wrong.

Comet 3I/ATLAS is warming up as it approaches the sun, causing a jet to emerge. The jet is visible in a dramatic new image.

New images reveal the stunning reversal of the interstellar objects “anti-tail” and could be indicative of a “maneuvering” alien craft.

NASA's 3I/ATLAS lie is exposed as amateur astronomers spot a 'hidden' object trailing the interstellar visitor—a 'mothership' cover-up?

New images captured by NASA, which have not yet been released yet, show the changing tail of 3I/Atlas. The comet is currently hidden behind the sun and will not be seen by Earth-based telescopes. NBC News' Gadi Schwartz talks to Harvard Professor Avi Loeb about the latest developments.

Did CNN report the interstellar comet 3I/ATLAS has contacted Earth, as a viral social media post declared? No, that's not true: There's no such report on CNN.com. CNN has not used the chyron "IT'S GETTING SERIOUS" on any of

The interstellar comet 3I/ATLAS is barreling toward its closest point to the sun as perihelion looms on Oct. 29. How different will it look when it reappears on the other side?

It might seem like an implausible connection, but interstellar comets and big dreams occupy similar positions in their respective fields of study.

A UN-endorsed group focused on planetary defense has locked onto 3I/ATLAS as the mysterious interstellar visitor fuels alien tech theories.