Earth Science

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Mining the Scrap Heap for Treasure

Across America, a network of scrap-metal firms is supplying much of the raw materials, iron to aluminum, that fuel the growing global economy

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Unearthing Secrets Locked Deep Inside Each Fistful of Soil

To scientists at the National Soil Tilth Lab in Ames, Iowa, it's not just dirt they are probing — it's the planet's sustaining surface

During their visits, students participate in activities that complement classroom learning (i.e. school programs) through hands-on experiences that stimulate all of their senses.

A Few Miles of Land Arose From the Sea—and the World Changed

Panama is an event as well as a place. Smithsonian scientists are learning what it has meant for continental animal swapping, ice ages, et al.

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However It Began on Earth, Life May Have Been Inevitable

In a universe filled with prebiotic compounds,it may be only a small step for some of them to hook up in ways that lead directly to life

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