Comet 3I/ATLAS was full-on erupting into space in December 2025, after its close flyby of the sun, causing it to ...

NASA's SPHEREx space telescope detected organic molecules coming off comet 3I/ATLAS as the interstellar visitor made its ...

New analysis on 2017 Hubble images of the Jupiter-family comet, 41P/Tuttle–Giacobini–Kresak (41P/TGK), indicates that the ...

A fresh analysis of Comet 41P/Tuttle-Giacobini-Kresák observations suggests it abruptly reversed its spin after its last Earth flyby—an extreme and unprecedented change.

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the ...

First its rotation slowed between March and May 2017, taking 46 hours to complete a spin where it had once taken only 20 hours. This occurred as the comet neared its closest point to the sun, roughly ...

This newly discovered comet C/2026 A1 (MAPS), a rare Kreutz sungrazer, could blaze brightly in early April — or it could disintegrate entirely. Here's what to know.

Comet C/2024 E1 has been photographed as it nears Earth - but even at its closest, it will still be 150 million kilometres ...

NASA's infrared telescope SPHEREx captured stunning images of interstellar comet 3I/ATLAS as it exited the solar system.

The fate of a comet that was predicted to pass close to Earth remains a mystery five years after its dramatic breakup in the ...

A newly discovered sungrazing comet C/2026 A1 is heading for a perilous close encounter with the Sun in April. If it survives ...

Evidence from medieval chronicles suggests that the periodic nature of Halley’s Comet was recognized centuries earlier than previously believed.