The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything ...

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, astronomers detected a strange, fast-moving object racing toward the Sun. Named ...

NASA's IMAP mission will give Earthlings a sort of early warning system when solar weather may affect satellites and global ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

Water once flowed through asteroid Ryugu and possibly in early solar system, Japanese researchers claim Experts have ...

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have entered our solar system, a comet-like object known as 3I/ATLAS.

A space instrument built by the University of Colorado Boulder will launch aboard a NASA spacecraft on Sept. 23 to detect and ...

NASA spotted a new moon almost at the border of our solar system. Back in 1986, a theory came up that this cosmic body could ...

What lies beyond Neptune? Is it just empty space… or something far more mysterious? In this video, we explore the fascinating story of the Oort Cloud – a gigantic, icy sphere that surrounds our Solar ...

On Sept. 21-22, a partial solar eclipse will see the moon sweep over the sun's disk, blocking its light over a swathe of the ...

Tom Zega, a University of Arizona scientist who's worked on samples brought back from the asteroid Bennu, tells The Show more ...

The coldest planet in the Solar System is Uranus, which is surprisingly colder than Neptune due to its unique internal heat ...