Earth and our entire Milky Way galaxy may sit inside a mysterious giant hole which makes the cosmos expand faster here than in neighboring regions of the universe, astronomers say.

Astronomers have confirmed the third interstellar object on record is dashing through our solar system. Dubbed 3I/ATLAS, it ...

NASA has discovered an interstellar comet that's wandered into our backyard. Luckily, it won't get near enough to be a threat ...

A US astronaut has captured an extraordinary view of a phenomenon in space brought on by an intense thunderstorm below.

Just Wow.” NASA astronaut Nichole “Vapor” Ayers wrote in simple words to accompany a photo from the International Space ...

The inventor’s handmade tools are now museum artifacts.