Hume Lake, Sequoia National Forest of Fresno County, California by Lou Lu

Volcano eruption as seen from space.

Guangxi Province, China

Jim Jim Falls, Kakadu National Park, Australia

Morning before sunshine in Rarau mountains

The 12 Apostles, Australia

Laguna de los Tres and Fitz Roy, Argentina

Cloud Bank Rolling Over Grand Tetons by Monika

Kings Canyon National Park, California

A rich view of Earth

Glen Etive, Scottish Highlands

Wheat fields near Moscow, ID

Sierra Nevada, California