Physicist: In 2006 a probe called New Horizons was launched to get a better look at Pluto and its moons Charon, Nix, and Hydra. Since then, Pluto stopped being a planet and gained a couple more moons: Kerberos and Styx. The reason we have big fancy pictures of the eight planets in our solar system is because we’ve sent cameras to them. Tomorrow morning (July 14, 2015) New Horizons will pass Pluto at mach 48 (48 times the speed of sound, which is a misleading and entirely inappropriate way of measuring speed in space). Already New Horizons has sent us the clearest images of Pluto ever.