posted September 18, 2015 11:22 AM            

"The surface of Pluto is so complex that scientists aren’t sure how it got there, they have said, after images beamed back from New Horizons show an incredibly complex landscape" (...)

"“Pluto is showing us a diversity of landforms and complexity of processes that rival anything we’ve seen in the solar system,” New Horizons Principal Investigator Alan Stern said in a statement. “If an artist had painted this Pluto before our flyby, I probably would have called it over the top — but that’s what is actually there.” (...)

"Scientists have also been surprised to find that the haze in Pluto’s atmosphere has more layers than they knew. That creates a kind of twilight effect, meaning that terrain is lit up at sunset and gives them a kind of visibility that they’d never expected."