Sarah T. Stewart: Where did the Moon come from? A new theory

The video explores the giant impact theory, which suggests a Mars-sized body collided with Earth, forming the Moon. However, the theory's flaw is that it predicts different materials for Earth and Moon, which are isotopically identical. The discovery of synestia, a new astronomical object formed by heat and spin, offers a new perspective. Synestias may explain the Moon's formation inside a vaporous synestia, resolving the isotopic similarity. The video emphasizes questioning assumptions and exploring new ideas in scientific discovery.

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