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Ironing Out the Details of the Earth's Core

December 20, 2011

the vibrational spectrum of iron Identifying the composition of the Earth's core is key to understanding how our planet formed and the current behavior of its interior. While it has been known for many years that iron is the main element in the core, many questions have remained about just how iron behaves under the conditions found deep in the Earth. Now, a team led by mineral-physics researchers at Caltech has honed in on those behaviors by conducting extremely high-pressure experiments on the element. Full Story

California Institute of Technology

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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