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

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 ...

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 ...

Mars shines in the evening, and is joined briefly by Mercury. Jupiter joins Venus as the month goes on. And all month, look ...

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.