While the internet has been buzzing over the mysterious 3i/Atlas, with some even speculating it could be an alien spacecraft ...

Astronomers have observedunexpected activity in C/2014 UN271, the largest comet ever detected from the Oort Cloud, while it remains over a billion miles from the Sun. Using the ALMA radio telescope, ...

The fate of the world could rest on ATLAS’ shoulders. Contrary to allegations that 31/ATLAS is potentially hostile alien tech, the Manhattan-sized comet could provide potentially Earth-saving intel.

Update for Oct. 21: Due to cloudy weather, this livestream was rescheduled for Oct. 24, beginning at 1:30 p.m. EDT (1730 GMT). Two comets, C/2025 A4 (Lemmon) and C/2025 R2 (SWAN), are about to reach ...

NEW YORK (AP) — Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail from the outer edges of our solar system — possibly what’s ...