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 ...

Alpine Tranquility, Olympic National Park, Washington

Alpine Tranquility, Olympic National Park, Washington

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Paper Birch, White Mountains, New Hampshire

Paper Birch, White Mountains, New Hampshire

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Calm Waters, Port Orange, Florida

Calm Waters, Port Orange, Florida

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Subalpine Meadows at Paradise, Mt. Rainier, Washington

Subalpine Meadows at Paradise, Mt. Rainier, Washington

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Roaring Fork, Timed Exposure, Great Smoky Mountains, Tennessee

Roaring Fork, Timed Exposure, Great Smoky Mountains, Tennessee

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Summer Storm, Fork of Lightning Striking a Forest

Summer Storm, Fork of Lightning Striking a Forest

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Swiss Alps in Summer Landscape

Swiss Alps in Summer Landscape

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Flowing out of the Mist, Olympic National Park

Flowing out of the Mist, Olympic National Park

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Waterfall, Palau, Micronesia

Waterfall, Palau, Micronesia

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Cerro Torre, Los Glaciares National Park, Patagonia, Argentina

Cerro Torre, Los Glaciares National Park, Patagonia, Argentina

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Fallen, Monument Valley, Arizona

Fallen, Monument Valley, Arizona

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Horse Farm Sunrise, Versailles, Kentucky

Horse Farm Sunrise, Versailles, Kentucky

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Mammoth Peak, Yosemite National Park

Mammoth Peak, Yosemite National Park

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Buttermilk Falls, Delaware Water Gap National Recreation Area

Buttermilk Falls, Delaware Water Gap National Recreation Area

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Grand Canyon West Rim from Skywalk

Grand Canyon West Rim from Skywalk

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