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William Hartmann June 6, 1939- Alive Confirmed Giant-impact hypothesis- Theia collided with Earth to form Moon and Earth's 23.5 degree tilt. (jun 6, 1939 – 19h 47min, sep 22, 2024 y)

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Astronomy Project

ByAnuthra Abeysinghe
9 months ago
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Date:

jun 6, 1939
19h 47min, sep 22, 2024 y
~ 85 years

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