New research suggests Earth's Moon formed from the catastrophic collision of our planet with its \"sister\" planet, Theia, ...
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 tiny sample of the Moon locked away for more than 50 years turns out to have been hiding an astronomical secret. In specks ...
Deep within Earth’s mantle, scientists have uncovered surprising evidence that traces of the planet’s early form,proto-Earth, ...