Nature

The origin of life on Earth is not well understood, but it is known to have occurred at least 3.5 billion years ago, during the hadean or archean eons on a primordial Earth that had a substantially different environment than is found at present. These life forms possessed ...

Coyote Gulch, Escalante River Canyons, Utah

Coyote Gulch, Escalante River Canyons, Utah

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Reflections of Fall, Green Mountains National Forest

Reflections of Fall, Green Mountains National Forest

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Painted Hills Unit, John Day Fossil Beds NM, Oregon

Painted Hills Unit, John Day Fossil Beds NM, Oregon

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Wind River Range, Rocky Mountains of Wyoming

Wind River Range, Rocky Mountains of Wyoming

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Lancaster Sound, Nunavut, Canada

Lancaster Sound, Nunavut, Canada

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Indian Creek, Siuslaw National Forest, Oregon

Indian Creek, Siuslaw National Forest, Oregon

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Sea of Microscopie Life, Mono Lake, Sierra Nevada

Sea of Microscopie Life, Mono Lake, Sierra Nevada

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Montmorency Falls, Quebec, Canada

Montmorency Falls, Quebec, Canada

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Autumn Colors, Kyoto, Japan

Autumn Colors, Kyoto, Japan

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Technicolor Terrain, Joshua Tree National Park, California

Technicolor Terrain, Joshua Tree National Park, California

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Cypress Trees Scenery in South Carolina

Cypress Trees Scenery in South Carolina

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Spring Road

Spring Road

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Yellowstone National Park, Wyoming

Yellowstone National Park, Wyoming

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Sunrise on Gunsight Butte, Padre Bay, Arizona

Sunrise on Gunsight Butte, Padre Bay, Arizona

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Moonrise Alpenglow, Hatcher Pass, Alaska

Moonrise Alpenglow, Hatcher Pass, Alaska

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