A handout combination image released by NASA, sent to Earth on July 13, 2015, shows Pluto, left, and its moon, Charon, presented in false colors to make differences in surface material and features easy to see. NASA's New Horizons spacecraft made its closest pass by Pluto, coming within 7,800 miles of the surface on July 14. (NASA/John Hopkins Applied Physics Laboratory/Southwest Research Institute via The New York Times)'