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

A new investigation into old Kepler data has revealed that a planetary system once thought to house zero planets actually has ...

NASA has discovered 3I/ATLAS, only the third known interstellar object, now passing through our solar system from the ...

NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

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

NASA has discovered an interstellar comet that's wandered into our backyard. The space agency spotted the object with the sky ...

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

The object gained an official name, C/2025 N1 or 3I/ATLAS, on Wednesday. Moving at a record-setting speed for an interstellar ...

I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the ...

Long theorized but never observed, the first known “planet with a death wish” is described by Ilin and her colleagues in a ...