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 ...

Ice Cave, Spencer Glacier, Alaska

Ice Cave, Spencer Glacier, Alaska

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Autumn Colors, White Mountains, New Hampshire

Autumn Colors, White Mountains, New Hampshire

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Haut Atlas Mountains, Morocco

Haut Atlas Mountains, Morocco

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Lake Jostler, Norway, Scandinavia

Lake Jostler, Norway, Scandinavia

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Iguassu Falls Devil's Throat, Brazil

Iguassu Falls Devil's Throat, Brazil

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Willamette National Forest in Autumn, Oregon

Willamette National Forest in Autumn, Oregon

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Mirror Reflections, Mount Shuksan, Washington

Mirror Reflections, Mount Shuksan, Washington

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Wildflowers and Cool Waters, Mount Adams Vicinity

Wildflowers and Cool Waters, Mount Adams Vicinity

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Autumn Forest, Great Smoky Mountains

Autumn Forest, Great Smoky Mountains

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Beargrass, Grinnell Lake, Glacier National Park, Montana

Beargrass, Grinnell Lake, Glacier National Park, Montana

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Mount Baker, Snoqualmie National Forest

Mount Baker, Snoqualmie National Forest

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Sunrise at Reflection Lake, Mount Rainier

Sunrise at Reflection Lake, Mount Rainier

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Madrone Trees and Barr Creek Falls, Mill Creek Recreation Area

Madrone Trees and Barr Creek Falls, Mill Creek Recreation Area

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Sunrise through the Sapphire Mountains, Montana

Sunrise through the Sapphire Mountains, Montana

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Early Snow Tree Huddle, Sierra Nevada, California

Early Snow Tree Huddle, Sierra Nevada, California

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