One year ago, NASA’s New Horizons space probe entered the history books by exploring the Pluto system. Image credit: NASA / Johns Hopkins University Applied Physics Laboratory / Southwest Research Institute. After a journey of 9.5 years through the Solar System, New Horizons made its closest approach to Pluto on July 14, 2015. Since then, the spacecraft has sent back spectacular images of the dwarf planet, its largest moon Charon and four smaller...
