RT @hist_astro: “Pluto Not Yet Explored” @apod 12 February 1996. That’s about to change. #PlutoFlyBy #Pluto http://t.co/DrIQcFXNTy
RT @hist_astro: “Pluto Not Yet Explored” @apod 12 February 1996. That’s about to change. #PlutoFlyBy #Pluto http://t.co/DrIQcFXNTy