I/ATLAS's unexpected acceleration is likely caused by mass loss and outgassing as it passes close to the sun, not advanced ...

NASA’s confirmation that comet 3I/ATLAS is experiencing a subtle but real non‑gravitational acceleration has turned a niche ...

While the feds idled, an interstellar object known as 3I/ATLAS was barnstorming the solar system, at a speed that reached 153 ...

Comet 3I/ATLAS did not explode as some reports claimed. Instead, it naturally fragmented—a common process for comets nearing the Sun. Scientists confirmed no alien or explosive activity occurred.

NASA shares why its HiRISE photo of 3I/Atlas appears blurry, even as amateur astronomers release sharper comet images.

Imaging suggests that a lot of the material coming off is in the form of dust grains. NASA indicated that two missions to ...

Is the interstellar comet 3I/ATLAS spinning? That is the question currently dominating online astronomy circles, fueled by ...

Avi Loeb says 3I/Atlas is gaining speed as new images show unusual tail changes. We unpack the data, comet physics, and whether it poses any risk.

A flying piece of cosmic rock or an alien threat? Comet 3I/ATLAS is hurtling through our solar system and captivating ...

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 known as the Oort ...

After intercepting the speeding comet, a wealth of findings. The photo recently released by ESA and taken by OSIRIS wide-angle camera on the Rosetta space probe, Nov. 22, 2014. ESA/Rosetta/OSIRIS/AP ...