9. The journey to Pluto – It all began with a postage stamp

On 15 July, 2015, NASA’s New Horizons flew past Pluto, becoming the first spacecraft to do so. Much has been said about this nine-year, three-billion-mile journey.  However, this is the little-known story of the early years of Pluto’s exploration plan; the story of an innocuous US postage stamp that branded Pluto as “Not Yet Explored”, and how it fired up scientists’ desire to reach the dwarf planet.

Music- Chris Zabriskie
Sound and Image credit- NASA