The Grand Canyon in Arizona pictured from the International Space Station

iss074e0208838 (Jan. 26, 2026) --- The Colorado River began carving the Grand Canyon—one of the Seven Natural Wonders of the World and a UNESCO World Heritage Site in Arizona—about 5 to 6 million years ago. This photograph was taken from the International Space Station as it orbited 260 miles above the Colorado Plateau in the southwestern United States.