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

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed. The object -- likely a comet -- was first detected in data collected between by ...

Astronomers are tracking a visitor called 3I/ATLAS, the third confirmed interstellar object ever observed. The two previous instances were 1I/’Oumuamua in 2017 and 2I/Borisov in 2019. 3I/ATLAS is ...

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

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

NASA's SPHEREx spacecraft has detected organic molecules on comet 3I/ATLAS, leading scientists to speculate it could be seeding life across the universe.