This is a great post with an abundance of astronerdy analysis of the new Pluto system photos and spectra. Posted bychrisdolan July 16, 2015 This is a great post with an abundance of astronerdy analysis of the new Pluto system photos and spectra. http://www.planetary.org/blogs/emily-lakdawalla/2015/07151720-first-look-at-new-horizons-pluto-charon.html