Lab data is combined with NASA New Horizons to identify where Pluto's Moon came from. Pluto's moon, Charon, has a red cap, and there are many possibilities for how it originated according to the many theories brought by studies and other data.Lab data is combined with NASA New Horizons to identify where Pluto's Moon came from. Pluto's moon, Charon, has a red cap, and there are many possibilities for how it originated according to the many theories brought by studies and other data. Pluto Moon: Scientists Explain Charon's Red Cap, NASA New Horizons Data | Tech Times