From the International Space Station, Expedition 42 Flight Engineer Terry W. Virts took this photograph of the Gulf of Mexico and U.S. Gulf Coast at sunset on Dec. 14, 2014. The space station and its crew orbit Earth from an altitude of 220 miles, traveling at a speed of approximately 17,500 miles per hour. Because the station completes each trip around the globe in about 92 minutes, the crew experiences 16 sunrises and sunsets each day.