More than 1 million "interstellar objects" the size of the Statue of Liberty could be drifting unseen in the outer solar ...

A Chilean space telescope has captured striking images of YR4 2024, the “city-killer” asteroid that’s potentially on a ...

There are extraterrestrials among us. They landed four billion years ago when Earth was just forming. And they weren't ...

Last fall, the scientific community went into a minor frenzy. A hunk of interstellar material had been sucked into the ...

A large asteroid dubbed 2024 YR4 now has a 2.2% chance of hitting the Earth on Dec. 22, 2032, according to NASA and the ...

Oumuamua and Comet Borisov in 2017 and 2019, respectively, created a surge of interest. What were they? Where did they come ...

On this day 35 years ago, NASA's Voyager 1 spacecraft took a picture that changed how we see our planet. The iconic "Pale ...

The volcanologist threw cold water on the defense potential of the DART (Double Asteroid Redirection Test) spacecraft, which ...

New paper points to the Alpha Centauri triple star system as likely potential source of millions of interstellar asteroids and comets.

"The lightsail will travel faster than any previous spacecraft, with potential to eventually open interstellar distances to ...

New research suggests millions of unseen interstellar objects, some as big as the Statue of Liberty, could be trapped in the ...