original: hydra appears to be spectrally neutral like charon and nix , though pluto is reddish .
simplifications: the light particles passing through the atmosphere of hydra , seem to create no color , as is the case with the pluto 's other two moons , charon and nix , though pluto itself is reddish . pluto is reddish while charon and nix do n't seem to have any particular color . hydra appears to be spectrally neutral like charon and nix , though pluto is reddish hydra appears to be spectrally neutral like charon and nix , though pluto is reddish . hydra appears to be -lrb- related to ghosts or the colors of the rainbow -rrb- neutral like charon and end or cancel , though pluto is reddish hydra appears to be spectrally neutral like charon and nix , though pluto is reddish . hydra appears to be spectrally neutral like charon and nix , though pluto is reddish . hydra , charon and nix are specturallyneutral , pluto is reddish .