Did mammoths, sabre-tooth tigers and other Ice Age megafauna face a similar, impact-induced fate to the dinosaurs? That’s ...

What: Ultraviolet observations of the interstellar comet 3I/ATLAS captured by NASA’s Europa Clipper spacecraft while the ...

Scientific uncertainty persists around 3I/ATLAS after anomalous observations and a CIA FOIA response, despite NASA’s public ...

A comet tail pointing toward the Sun sounds like a mistake-but that is exactly the geometry Comet 3I/ATLAS put on display as ...

The first time 3I/ATLAS showed up cleanly in deep stacked frames, its tail did something comets are not supposed to do: it ...

Interstellar Comet 3I/ATLAS puzzles scientists with a sunward anti-tail and wobbling jets, revealing secrets of alien solar ...

Scientists are uncovering new clues that a cosmic explosion may have rocked Earth at the end of the last ice age. At major ...

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 ...

Scientists used the Gemini North telescope in Hawaii to obtain images of the third-ever detected interstellar object, Comet 3I/ATLAS, on Nov. 26, 2025. Credit: NSF NOIRLab In the spirit of the season, ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space telescopes and orbiters have been documenting the rare visit. A mysterious ...

New images captured by the European Space Agency (ESA) of the interstellar comet 3I/ATLAS has "surprised" the agency's Jupiter Icy Moons Explorer (JUICE) team as they saw the "very clearly visible ...

The Hubble Space Telescope and the Jupiter Icy Moons Explorer have captured fresh images of an interstellar comet as the object nears its closest approach to Earth later this month. Comet 3I/ATLAS has ...