Caldera Volcano: Yellowstone's ticking time bomb
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11 سال پیش
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Derrick Pitts, chief astronomer and
Derrick Pitts, chief astronomer and planetarium director at the Franklin Institute Science Museum, joins "CBS This Morning: Saturday" to discuss the Caldera Volacano, a supervolcano, that sits underneath Yellowstone National Park.
11 سال پیش
در تاریخ 1392/10/07 منتشر شده
است.
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