Uncrewed aerial vehicles (UAVs) could fly deep into the heart of a raging wildfire, avoiding sudden flare-ups and dodging ...

Dust around distant stars may reveal whether colliding worlds grazed one another or hit hard enough to vaporize rock.

Andromeda is on a slow collision course with the Milky Way. Over billions of years, the merger will reshape the night sky and ...

In the early history of our solar system, scientists theorize that a Mars-sized object called Theia smashed into the infant Earth, vaporizing massive amounts of rock and blasting it into space. Some ...

The Milky Way and Andromeda are already colliding in slow motion—here's what happens when two galaxies merge and what it means for Earth's future.

The 2013 sci-fi blockbuster film Gravity, starring Sandra Bullock and George Clooney, popularized the notion of the Kessler syndrome. In the movie, Russia shoots down a defunct satellite and creates a ...