Along the border of Mexico and the U.S., a geologically and tectonically complex area serves as a visual reference point for astronauts on the International Space Station.
This photograph by an astronaut on the International Space Station highlights the Nevados de Chillán, a large volcanic area near the Chile-Argentina border.
America's first space station was launched forty years ago. Astronauts on Skylab conducted some the first comprehensive visual studies of Earth’s surface.
Astronauts capture a view of the South Atlantic Island that looks like it has been taken from an airplane. Mountains and glaciers stand in stark relief against the sea.