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Extraterrestrial Impact Likely Source of Sudden Ice Age Extinctions

September 24, 2007

earth and environment graphic What killed the wooly mammoths? An international team of scientists, including Peter Schultz of Brown University, suggests that a comet or meteorite exploded over the planet roughly 12,900 years ago, causing the abrupt climate changes that led to the extinction of the wooly mammoth and other giant prehistoric beasts. Their theory is published in the Proceedings of the National Academy of Sciences. Full Story

Brown University

The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2016, its budget is $7.5 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives more than 48,000 competitive proposals for funding and makes about 12,000 new funding awards. NSF also awards about $626 million in professional and service contracts yearly.

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