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

Interstellar comets are the original cosmic explorers, and by studying their metallic whispers, we are learning the secrets ...

The Gemini North telescope snapped a spectacular view of Comet C/2025 K1 (ATLAS) breaking apart as it emerged from the other ...

Comets usually fade quietly once they swing past the Sun. Interstellar comet 3I/ATLAS did not follow the same path. Instead, ...

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 ...

A rare event was observed as comet 41P/Tuttle-Giacobini-Kresák dramatically slowed its rotation and then spun in the opposite direction. This extreme change in spin, driven by material jets, was ...

SPHEREx detected a mix of molecules streaming off the comet, including water ice, carbon dioxide, and rocky material.

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

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

Comet 3I/ATLAS is not just another icy visitor cutting across the night sky. As it hurtles through the inner solar system, ...

In 2021, an 85 mile wide comet entered our solar system. Watch to learn more!