Gorgeous 'Twilight Zone' Photo of Pluto May Show Cloud for 1st Time

NASA even described the view as the "twilight zone" of Pluto. NASA's New Horizons spacecraft captured the photo shortly after its closest approach to Pluto on July 14, 2015, when the sun was on the other side of the dwarf planet from the probe's perspective. In the backlit twilight view, sunlight filters through Pluto's many-layered atmosphere and lights up certain features, including the towering Norgay Montes mountain range and the vast plain known as Sputnik Planum, whose surface is like