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

Comet 3I/ATLAS is a visitor that will never call the solar system home. Identified on a one-way path that carries it in and ...

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

Comet Wierzchoś, also known as C/2024 E1, is rapidly brightening as it approaches its closest point to Earth next week. But ...

Comets are pristine remnants left over from the solar system's formation 4.6 billion years ago, rather than younger fragments created by collisions between larger bodies, a new study suggests. The ...

Observations of interstellar object 3I/ATLAS show increased water, carbon dioxide, and organic gas release after its passage near the Sun, based on data from NASA’s SPHEREx mission ...

Initial analysis suggested the nucleus was approximately 13.7 kilometers wide (roughly city-sized); however, researchers ...

Active small bodies—including comets, active asteroids, icy minor planets, and transitional objects—occupy a unique position in planetary science. As ...

On February 17, the comet will make its closest approach to Earth from 94 million miles, roughly as far as the Sun.

Comet 3I/ATLAS was full-on erupting into space in December 2025, after its close flyby of the sun, causing it to significantly brighten. Even water ice was quickly sublimating into gas in ...

Space around the Sun contains far more than planets. Scattered through it are smaller bodies made of rock, metal, ice and ...