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

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice ...

Astronomers have found a distant world that challenges planetary formation theory, with a rocky planet where gas giants should be.

Comet 3I/ATLAS, the third confirmed interstellar object ever detected passing through our solar system, was caught shedding ...

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

Astronomers surveying the outer solar system have revealed that a rare object far beyond Neptune is moving in sync with the eighth planet in an unexpected way. Called 2020 VN40 and first discovered in ...

Scientists have unlocked one of the solar system’s many secrets from an unexpected source: a planetarium show opening to the public on Monday. At the American Museum of Natural History last fall, ...

Deep within the Kuiper belt, some small worlds look like they were assembled from two mismatched snowballs pressed together.