New Horizons Images Show Full Day on Pluto, Charon

On approach to the Pluto system in July 2015, NASA’s New Horizons spacecraft captured images of the dwarf planet and its biggest moon, Charon, rotating over the course of a full day. Pluto and the largest of its five known moons, Charon, orbit each other every 6.4 days. These objects are gravitationally locked to one [...] —> Read More