Pluto's landscape so complex that NASA scientists don;t know how it got there..
The colour pictures show for the first time that the hazes are a bright blue.
Who would have expected a blue sky in the Kuiper Belt? It’s gorgeous,” said Alan Stern New Horizons principal investigator from Southwest Research Institute (SwRI), Boulder, Colorado, in a statement.
The blue in the picture allows scientists to judge how exactly it is made.
“That striking blue tint tells us about the size and composition of the haze particles,” said science team researcher Carly Howett, also of SwRI. “A blue sky often results from scattering of sunlight by very small particles. On Earth, those particles are very tiny nitrogen molecules. On Pluto they appear to be larger — but still relatively small — soot-like particles we call tholins.”
In pictures: Nasa mission to Pluto