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Massive Impact: How Theia Created Earth's Moon

2/19/2025

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Summary

Story summary

A colossal collision between early Earth and a Mars-sized body named Theia is believed to have birthed the Moon. This theory is bolstered by the presence of Earth's unusually large moon, its swift rotation, and the striking similarities in the composition of lunar regolith and Earth's crust, as uncovered by Apollo missions, hinting at a shared origin.

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Story summary

A colossal collision between early Earth and a Mars-sized body named Theia is believed to have birthed the Moon. This theory is bolstered by the presence of Earth's unusually large moon, its swift rotation, and the striking similarities in the composition of lunar regolith and Earth's crust, as uncovered by Apollo missions, hinting at a shared origin.