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 days of the universe, our home looked very different from how it does today. Back then, the region in our ...

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 ...