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

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

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

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

'LHS 1903 breaks this thinking.' ...

This is HOPS-315, a baby star where astronomers have observed evidence for the earliest stages of planet formation. The image was taken with the Atacama Large Millimeter/submillimeter Array (ALMA). In ...

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 ...

NASA researchers show that artificial intelligence can anticipate solar flare buildups by tracking subtle changes across the Sun’s surface.

New infrared observations reveal that the rare interstellar visitor known as comet 3I/ATLAS has dramatically brightened ...