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 ...

Azure Waters, The Great Barrier Reef, Australia

Azure Waters, The Great Barrier Reef, Australia

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Alder Trees, Merced River, Yosemite National Park, California

Alder Trees, Merced River, Yosemite National Park, California

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Mount Fuji (Fujisan, Fujiyama), Japan

Mount Fuji (Fujisan, Fujiyama), Japan

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Easy Waves, Coastline, Atlantic Ocean

Easy Waves, Coastline, Atlantic Ocean

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Thirsty, Death Valley, California

Thirsty, Death Valley, California

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Avalon Leaf Close-up Photo

Avalon Leaf Close-up Photo

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Mono Lake, Sierra Nevada, California

Mono Lake, Sierra Nevada, California

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Lower Yellowstone Falls, Yellowstone National Park

Lower Yellowstone Falls, Yellowstone National Park

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Cape Lookout State Park, Oregon

Cape Lookout State Park, Oregon

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Reelfoot Lake, near Tiptonville, Tennessee

Reelfoot Lake, near Tiptonville, Tennessee

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Natural Bridges State Park, Santa Cruz, California

Natural Bridges State Park, Santa Cruz, California

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Majestic El Capitan, Yosemite National Park, California

Majestic El Capitan, Yosemite National Park, California

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Aitutaki, Cook Islands, South Pacific

Aitutaki, Cook Islands, South Pacific

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Waterfall, Letchworth State Park, New York

Waterfall, Letchworth State Park, New York

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Ouem El Ma Lake Oasis, Mandara Lakes, Libya

Ouem El Ma Lake Oasis, Mandara Lakes, Libya

1024x768, 196K