Main Content
Journey through the center of the Earth, explore the planet's dynamic systems and dramatic landforms, and learn about the atmosphere that keeps us alive.
More About Earth
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Mining's Hard Rock Legacy
Mines in the U.S. West still ride cycles of boom and bust, but decades of rising environmental standards now demand that they produce without repeating the disasters of the past.
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Yosemite—Grace Under Pressure
It attracts more than three million visitors each year. But beyond the herds of tourists there is another Yosemite—less familiar, but charged with a power of its own.
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The Coal Paradox
Coal is plentiful—and polluting. Can an energy-hungry world afford to wait for this fuel to clean up?
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Rocks
They form within the Earth and make up a large part of our planet—literally. Rock your world and get to know granite, see where sandstone comes from, and learn what makes marble.
Photo Galleries
Quizzes
2010 Emerging Explorers
National Geographic's Emerging Explorers Program recognizes and supports uniquely gifted and inspiring young adventurers, scientists, photographers, and storytellers—explorers who are already making a difference early in their careers.
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Jerry Glover, Agroecologist
Glover is part of a research team developing perennial crops that could revolutionize agriculture.
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Albert Yu-Min Lin, Research Scientist and Engineer
Albert Yu-Min Lin’s explorations are groundbreaking, because they never break ground. He uses noninvasive computer based technologies to gather, synthesize, and visualize data without disturbing a blade of grass.
Expedition Mongolia
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Join the Expedition
Help Emerging Explorer Albert Lin find the lost tomb of Genghis Khan by joining the crowdsourcing effort to scan satellite images for clues. A ground team in Mongolia will investigate the clues suggested by the community. You'll be breaking ground in archaeology, without actually breaking any ground!
Science Topics
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The Great Energy Challenge
Better understand the need for clean energy and learn how to be part of the solution.
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Your Oil Spill IQ
You know the Gulf is a mess, but how much do you really know about oil spills?
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Personal Energy Meter
See how you measure up against others, and how changes at home could do tons to protect the planet.
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Your Energy Diet
Reducing power use is a like taking off extra pounds. These small steps may help heal the planet, and save you money.
My Shot National Parks
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National Park Jigsaw Puzzles
Scroll through hundreds of national park images. Click on a thumbnail to play a jigsaw puzzle.
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National Park Desktop Wallpaper
Browse through a national parks wallpaper gallery and download photos to your desktop.
Special Ad Section
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Enter Sweepstakes
Enter once daily for your chance to win an All Asia Pass for two!
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School Contest
Enter your idea in the Find Your Footprint contest and your classroom and school could win big!
