Apollo 15's 'Genesis Rock' Offers Window Into Moon's 4-Billion-Year-Old Crust
Apollo 15 astronauts discovered an unusually bright rock near Spur Crater on the lunar surface. The sample, called the Genesis Rock, is an anorthosite estimated to be approximately four billion years old. Scientists consider it a remnant of the Moon's original primordial crust. Its mineral composition provides important insights into the early geological history of the Moon. Researchers continue to study the ancient sample to better understand how the Moon formed and evolved.
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