Pluto May Very Well Have a Liquid Ocean, Too
As the data being transmitted by the New Horizons space probe continues to flow back to Earth, scientists poring over the information continue to find new surprises, including possible evidence that Pluto has a subsurface ocean of liquid water. Scans of the western lobe of the dwarf planet’s "heart" show that, for some unknown reason, there is extra mass in the region. This came as a surprise to the researchers: the area, dubbed Sputnik Planum, is thought to have been formed by a meteor impact, meaning that it should have negative mass, as one would assume from an impact crater.
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