Thu, May An underwater volcano in the South Pacific erupted violently on Saturday, causing tsunamis to hit Hawaii, Japan, and Tonga's largest island, Tongatapu -- sending waves flooding into the capital.

After 20 years of trying, researchers have finally convicted massive volcanic eruptions in Siberia as the culprit in the greatest of all mass extinctions, one that destroyed 90% of marine species on the planet.

Read more ...Mega-Eruptions Drove the Mother of Mass Extinctions (Science AAAS article)

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