New evidence from NASA's GRAIL craft supports the theory that Earth's moon was formed by Theia crashing into Earth 4.5 billion years ago.
GRAIL spacecraft's data reveals dense titanium-iron ore deep beneath the moon's surface, indicating Theia's remains formed the moon's composition.
#theia-collision #moon-formation #nasa-grail-spacecraft #titanium-iron-ore-deposits #planetary-geophysics
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