A detailed simulation of Theia crashing into Earth. While the collision was violent, it was not energetic enough to melt the Earth's lower mantle -- meaning that remnants of Theia could be preserved, ...
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 ...
The Giant Impact Hypothesis has long fascinated scientists as the leading explanation for the Moon's formation. Around 4.5 billion years ago, the Earth and a Mars-sized protoplanet called Theia ...
An impact with a protoplanet called Theia 4.5 billion years ago seems to have left remnants deep inside Earth For decades, scientists have been baffled by two large, mysterious blobs in Earth’s mantle ...
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