About 4.5 billion years ago, Earth had a violent neighbor. A young, still-forming planet named Theia slammed into our world with enough force to melt vast portions of its mantle and scatter a huge ...

A Star Trek–inspired idea by Miguel Alcubierre kicked off decades of theory and experiments as scientists pursue plausible ...

In 1999, Belgian physicist Chris Van Den Broeck implemented a minor alteration to Alcubierre’s concept by shrinking the ...

While the crater-pitted moon may appear geologically dead, researchers have discovered more could be going on under its icy ...

NASA's Perseverance rover spotted a possible space rock on the surface of Mars. The meteorite's nickname is 'Phippsaksla.' ...

At the monastery in the On the Trail of the Traitor quest in The Outer Worlds 2, you'll find an observatory puzzle that ...

A guide to the Sagittarius moon sign in your birth chart, including what it reveals about your personality traits, love life, ...

Fans at Planet Anime Kansas City successfully sealed the Honmoon as they celebrated the visit of a voice actor from the ...

Is there a full moon tonight? Here's what to know about today's special moon phase and when to look up for the next meteor ...

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

The next full moon will be the last supermoon of 2025, set to shine for days. Here's when to watch and what to know about ...

The sun's gravity will pull the moon farther away from Earth than it's been in over five years on Nov. 19, though it'll be ...