Triggered

Comet impact may have triggered decline of Ohio’s Hopewell people 1,600 years ago

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Astronomy and anthropology have blended to help determine what might have triggered the decline of a major North American society 1,600 years ago.  A vibrant culture lived in the Ohio Valley from about 200 BCE to 300 CE. These people were the ancestors of many modern Native American tribes, such as the Haudenosaunee (Iroquois) and … Read more

Deadly Indonesia Eruption Was Triggered by Heavy Rains

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The following essay is reprinted with permission from The Conversation, an online publication covering the latest research. The eruption of Mount Semeru in Indonesia on Saturday tragically claimed the lives of 22 people, with another 22 still missing and 56 injured. More than 5,000 people have been affected by the eruption, and more than 2,000 people have taken … Read more