About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...
A collision between Earth and a massive Mars-sized protoplanet likely caused the formation of our moon. Now scientists from ...
A protoplanet crashed into Earth more than four billion years ago, ejecting the Moon. It is now clear where the protoplanet ...
Earth formed around 4.54 billion years ago. Knowing how old Earth is can be more difficult to confirm because Earth's age is not only based on the age of rocks, but also the isotopic estimates of what ...
Atoms found deep inside our planet argue that parts of “proto-Earth,” the early version of our planet, still survive inside the mantle.
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