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 ...

Fire and Ice, Kailua Kona, Big Island Hawaii

Fire and Ice, Kailua Kona, Big Island Hawaii

1024x768, 74K

Buzzards' Roost, Fall Creek Falls State Park, Tennessee

Buzzards' Roost, Fall Creek Falls State Park, Tennessee

1024x768, 212K

Southern Oregon Pacific Ocean Cliffs, Blacklock Point

Southern Oregon Pacific Ocean Cliffs, Blacklock Point

1024x768, 231K

Three Patriarchs, Zion National Park, Utah

Three Patriarchs, Zion National Park, Utah

1024x768, 308K

Rope Swing Memories, Near Petaluma, California

Rope Swing Memories, Near Petaluma, California

1024x768, 230K

Lake Russell, Oregon Cascades

Lake Russell, Oregon Cascades

1024x768, 108K

Dunes at Dawn, Destin, Florida

Dunes at Dawn, Destin, Florida

1024x768, 321K

Blue Spring State Park, Florida

Blue Spring State Park, Florida

1024x768, 403K

Waterfall, Willamette National Forest, Oregon

Waterfall, Willamette National Forest, Oregon

1024x768, 371K

Reaching Through the Giant Forest, California

Reaching Through the Giant Forest, California

1024x768, 252K

Kepler Track, South Island, New Zealand

Kepler Track, South Island, New Zealand

1024x768, 404K

Rutledge Falls, Coffee County, Tennessee

Rutledge Falls, Coffee County, Tennessee

1600x1200, 367K

Hills Creek Waterfall

Hills Creek Waterfall

1280x800, 461K

Aspen Leaves, Eastern Sierra, California

Aspen Leaves, Eastern Sierra, California

1024x768, 242K

Peaceful Pondering, Mount Assiniboine, British Columbia

Peaceful Pondering, Mount Assiniboine, British Columbia

1024x768, 231K