Our Moon was formed from a violent collision that occurred around 4.5 billion years ago. And the giant body that smashed into the Earth, birthing the planet’s natural satellite, was named Theia. A new ...

Add Yahoo as a preferred source to see more of our stories on Google. Earth’s chemical makeup solidified just three million years after the Solar System formed—yet it was a later collision with ...

The moon has been Earth's constant companion for approximately 4.5 billion years, escorting the planet during its myriad journeys around the sun. While its origins are a little hazy - it cannot be ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Over 4.5 billion years ago, ...

Scientists at the California Institute of Technology have announced they believe the planet that collided with Earth billions of years ago could still be inside and led to the formation of the Moon.

A new study has determined with 99.9% accuracy that the Moon was formed 95 million years after the birth of the Solar System. This pegs the Moon as being a lot younger than we previously thought -- ...

The big picture: Theia is a hypothetical ancient planet that orbited the Sun during the formation of the solar system. According to the giant-impact hypothesis, this protoplanet collided with Earth ...

Scientists from the Durham University and University of Glasgow worked together in developing simulations using supercomputers that may explain how the Moon may have formed after a collision between ...

rtist's depiction of a collision between two planetary bodies, similar to the hypothesized collision between Theia and the proto-Earth. Source: https://en.wikipedia ...