Star trails with the dark night sky in the Kalahari National Park, South Africa.
Moon rise over West Mitten Butte in Monument Valley.
Silhouette of the Bass Harbour Head working lighthouse at sunset in Acadia National Park Maine.
Aurora in night sky above Chena Hot Springs near Fairbanks Alaska.
Composite image of a polar bear silhouette at sunset and aurora reflected in Beaufort Sea, Kaktovik Alaska.
Aurora photographed on tundra in Wapusk National Park in Manitoba, Canada.
Wildebeest silhouette at sunset in the Serengeti National Park Tanzania.
This Polar Bear is walking along the shore of the Beaufort Sea near Kaktovik Alaska at sunset.
