Perhaps, the new study suggests, those clumps came from the protoplanet that smashed into Earth, leading to the moon’s formation. When the impactor Theia hit Earth 4.5 billion years ago ...

Advertising When Theia hit Earth, the models found, the collision melted the crust and outer part of the mantle of Earth, mixing them with bits of Theia. The moon formed out of that cloud of debris.

Earth’s violent collision with a protoplanet may have given birth to the Moon. Discover the giant-impact theory and the ...

One of the most popular hypotheses explaining the formation of the Moon suggests it was formed after a Mars-sized object dubbed Theia collided with the Earth around 4.5 billion years ago.

It's believed that when the Earth was young, "something big," about the size of the planet Mars, known as "Theia," hit it, according to NASA. The impact was so massive that it threw our planet off ...

The rogue object, named Theia, was largely obliterated by the ... This site was gouged out when a large asteroid hit Earth some 207 million years ago, around when the Triassic-Jurassic mass ...

"An object bigger than Mars hit Earth early in its history and ... theory that suggests a Mars-size planet named Theia collided with Earth 4.5 billion years ago, launching a salvo of rocky debris ...

That rock has a name: Theia. This requires an explanation. You probably know about the asteroid that smashed into Earth about 66 million years ago at the end of the Cretaceous period, creating the ...