From nitrogen glaciers to ice volcanoes: Pluto is defying all expectations

Ask Alan Stern to name the most surprising result from NASA's New Horizons mission to Pluto and he'll tell you to rephrase the question.

"A better question would be what isn't puzzling or mysterious, because that's a much shorter list," said the mission's principal investigator. "Almost everything...

via L.A. Times - Science http://ift.tt/1UDqILk