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 ...

Yellowstone River in Hayden Valley, Wyoming, USA

Yellowstone River in Hayden Valley, Wyoming, USA

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Midway Geyser, Grand Prismatic, Yellowstone National Park, Wyoming

Midway Geyser, Grand Prismatic, Yellowstone National Park, Wyoming

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Sunrise, Joshua Tree National Monument

Sunrise, Joshua Tree National Monument

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Dawn Over Radnor Lake, TN State Park

Dawn Over Radnor Lake, TN State Park

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Niagara Falls Illumination at Night

Niagara Falls Illumination at Night

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Grand Canyon West Rim from Skywalk

Grand Canyon West Rim from Skywalk

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Merced River and El Capitan in Winter, Yosemite Valley

Merced River and El Capitan in Winter, Yosemite Valley

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Joshua Tree Sunset, Mojave Desert, California

Joshua Tree Sunset, Mojave Desert, California

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Mountain Mist, Alberta's Rocky Mountains, Canada

Mountain Mist, Alberta's Rocky Mountains, Canada

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Grand Teton National Park, Wyoming

Grand Teton National Park, Wyoming

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Through the Mist to Royal Basin, Olympic National Park

Through the Mist to Royal Basin, Olympic National Park

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Umpqua River, Douglas County, Oregon, USA

Umpqua River, Douglas County, Oregon, USA

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New Providence Islands from above, Bahamas

New Providence Islands from above, Bahamas

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Rising Sands, Namib Desert, Namibia, Africa

Rising Sands, Namib Desert, Namibia, Africa

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Autumn Road, Cognac Region, France

Autumn Road, Cognac Region, France

1024x768, 345K