Earth Science

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Seeing Science Six Miles Up

City patterns, farm history, ancient seabeds, old mountains and new, the why of clouds: take a look

Equinox seen from the astronomic calendar of Pizzo Vento at Fondachelli Fantina, Sicily

Calendar

It took two millennia to get the one we now use; we owe a lot to the sun and moon, to Caesar, Pope Gregory and, oh yes, the Earl of Chesterfield

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Wiring the Jersey Coast

In one spot on the continental shelf, scientists aim to understand all that happens, 24 hours a day

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The Incredible Sponge

It may seem primitive, but it can do some things you wouldn't want to try at home

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Nitrogen

It's colorless, odorless and gets no respect, but it's vital to the cycle of life— and we may be using too much

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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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