Our Planet

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Picture of the Week—Project Pebble

The University of Cambridge Department of Engineering hosted a photography contest earlier this year, and the winners have just been announced

In the '80s, the challenge was to limit acid rain from power plants; now, it's to cut carbon emissions.

The Political History of Cap and Trade

How an unlikely mix of environmentalists and free-market conservatives hammered out the strategy known as cap-and-trade

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Typhoon Morakot Reminds Us to Prepare for Hurricanes

Meteor Crater in Arizona is 4,000 feet wide and almost 600 feet deep.

The Ten Most Spectacular Geologic Sites

Smithsonian picks the top natural wonders in the continental United States

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Was the Ancient Incan Empire Fueled by Warm Climate?

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Weather vs. Climate

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Seas of Plastic

Michelle Nijius is a science and environmental journalist. She is the author of "The Cahaba: A River of Riches."

Michelle Nijhuis on “River of Riches”

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Darwin for Dads and More Science Finds in the August Issue

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Science News From the Smithsonian

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Climate Change in Your Backyard

The ocean's boundless energy (von Jouanne near Oregon's Otter Rock Beach) could furnish up to 6.5 percent of U.S. electricity.

Catching a Wave, Powering an Electrical Grid?

Electrical engineer Annette von Jouanne is pioneering an ingenious way to generate clean, renewable electricity from the sea

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The Periodic Table of Videos Celebrates with Cake

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Picture of the Week—An Erupting Volcano as Seen from Space

Australia’s Simpson Desert

Australian Lake Comes to Life

The Kuroshio, or "Black Current," is the Pacific Ocean's answer to the Atlantic's Gulf Stream.

Borne on a Black Current

For thousands of years, the Pacific Ocean’s strong currents have swept shipwrecked Japanese sailors onto American shores

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Picture of the Week—A River in Madagascar

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Picture of the Week—Organic Solar Cells

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A Journey Through Science History From Those Who Lived It

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Picture of the Week -- Coral Reefs and Climate Change

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