New Horizons has shown Pluto to be a diverse world, more so than many scientists had anticipated, with tall mountain ranges, vast glaciers, a blue-colored layered atmosphere, and possible ice volcanoes. One thing, however, which seemed to be relatively lacking, was exposed water ice. Not much had been seen on the surface, not even in the glacial regions, which are composed of other ices instead. But now, new data indicates there actually is more water ice than had originally been thought.
Read MoreData from New Horizons reveals more water ice on Pluto than previously thought