Does Iran want war with Israel? | ABC News Daily podcast 
The last caldera-forming eruption at Yellowstone was “much more complex than previously thought,” according to the annual report on activity at supervolcanoes. The last super-eruption at Yellowstone volcano, which occurred 631,000 years ago, was not a single big bang. Instead, the new research suggests it was a series of eruptions or multiple vents spewing out volcanic material in quick succession.
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