An interstellar trespasser known as 3I/ATLAS is almost certainly a comet. So, why do so many people think it's ...

American space agency NASA revealed it already used 12 major space assets to track and study the 3I/ATLAS interstellar comet.

The object is expected to make its closest approach on December 19, 2025, passing by at a distance of approximately 167 ...

Proxima Centauri, a star four light-years from the sun, shoots out a violent solar flare in this artist's depiction. Only a few years ago, astronomers heralded the discovery of a rocky world circling ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Astronomers have spotted what they think might be an "interstellar object" hurtling through the ...