Sunset on Pluto: Breathtaking NASA Photo Shows Mountains, Wispy Atmosphere

The photo, which New Horizons took during its epic July 14 flyby of Pluto, captures a dramatic sunset view. Towering ice mountains cast long shadows, and more than a dozen layers of the dwarf planet's wispy atmosphere are clearly visible. "This image really makes you feel you are there, at Pluto, surveying the landscape for yourself," New Horizons principal investigator Alan Stern, of the Southwest Research Institute in Boulder, Colorado, said in a statement today (Sept. 17).