Pluto nearly fills the frame in this image from NASA New Horizons spacecraft, taken on July 13, 2015. This is the last and most detailed image sent to Earth before the spacecraft closest approach to Pluto on July 14.
Pluto nearly fills the frame in this image from NASA New Horizons spacecraft, taken on July 13, 2015. This is the last and most detailed image sent to Earth before the spacecraft closest approach to Pluto on July 14.