Picture credits

• “Pluto discovery plates”, Clyde Tombaugh, public domain
• “Sunset over the incredible Icy Mountains of the Sputnik Planum on Pluto - NASA's New Horizons - 2015 (52629741258)”, Andrea Luck, CC BY 2.0
• “Pluto Dunes (48111532582)”, geckzilla, CC BY 2.0
• “Pluto-FlyoverAnimation-20150918”, NASAgovVideo, public domain
• “Pluto - A world in the Kuiper Belt - NASA's New Horizons - 2015 (53388250354)”, Andrea Luck, CC BY 2.0