A mysterious interstellar object known as 3I Atlas has entered our solar system, and the more scientists observe it, the stranger it becomes. Unlike typical comets, it began brightening far beyond ...

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, the third confirmed interstellar object ever detected passing through our solar system, was caught shedding ...

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

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

The interstellar visitor, only the third such object to be discovered passing through our solar system, ignited controversial ...

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 ...

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

Discover the latest findings on interstellar comet 3I/ATLAS, from rare methane detections to high-resolution Hubble images, as it begins its final exit from our solar system.

Harvard scientist Avi Loeb suggests comet 3I/ATLAS may be an alien vessel seeding life, after NASA's SPHEREx spacecraft detected unexplained methane and organic chemicals on board.

'Hang onto your hats.' ...

NASA's SPHEREx space telescope detected organic molecules coming off comet 3I/ATLAS as the interstellar visitor made its closest approach to Earth in December.