Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

Astronomers are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system.

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system.

Officially named 3I/ATLAS, the comet was confirmed as having originated outside of Earth's solar system on July 3, according ...

An object from another star has been seen entering the solar system at high speed, and is expected to whip around the sun in ...

NASA’s SPHEREx mission is mapping the entire sky in 102 infrared colors, turning raw space data into a public tool for ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Comet or asteroid heading for the Sun is only the third time an interstellar object has been spotted inside our group of ...

All eyes are on Comet 3I/Atlas as astronomers worldwide chase the exotic ice ball through our solar system ...

NASA has spotted an intergalactic comet, named 3I/Atlas, that journeyed into our solar system. This icy snowball, the third interstellar object detect ...