Ashley Cooper / Sun rays reflected onto solar tower at Ivanpah Solar Thermal Power Plant, the largest solar thermal plant in the world. It covers 4,000 acres of desert and produce 392 megawatts (MW) of electricity....

Ashley Cooper / Sun rays reflected onto solar tower at Ivanpah Solar Thermal Power Plant, the largest solar thermal plant in the world. It covers 4,000 acres of desert and produce 392 megawatts (MW) of electricity....

Ashley Cooper / Heliostats reflecting sunlight onto solar tower at Ivanpah Solar Thermal Power Plant, the largest solar thermal plant in the world. It covers 4,000 acres of desert and produce 392 megawatts (MW) of el...

Ashley Cooper / Sun rays reflected onto solar tower at Ivanpah Solar Thermal Power Plant, the largest solar thermal plant in the world. It covers 4,000 acres of desert and produce 392 megawatts (MW) of electricity....

Shane P. White / Japanese Macaque (Macaca fuscata) in hot spring, Jigokudani, Nagano, Japan

Floris van Breugel / Person in White sulphur hotsprings, Chichagof island, South East Alaska, USA, July. model released

Enrique Lopez-Tapia / Kettle and strainer to make Ethiopian coffee, Danakil depression, Afar Region, Ethiopia, Africa. November 2014.

Theo Allofs / Blue Wildebeest (Connochaetes taurinus) herd and African Elephant (Loxodonta africana) and hot air balloon, Masai Mara, Kenya

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd feeding on the plains watched by tourists in hot air balloons (Connochates taurinus). Maasai Mara National Reserve, Kenya.

Anup Shah / Blue Wildebeest (Connochaetes taurinus) and Burchell's Zebra (Equus burchellii) herd watched by tourists in hot air balloons, Mara River, Masai Mara, Kenya

Anup Shah / Blue Wildebeest (Connochaetes taurinus) and Burchell's Zebra (Equus burchellii) herd watched by tourists in hot air balloons, Mara River, Masai Mara, Kenya

Kirkendall-Spring / Lower travertine terraces, Mammoth Hot Springs in Yellowstone National Park, Wyoming, USA, January 2014.