NASA's New Horizons probe has revealed geological surprises and a hint of underground ocean on the dwarf planet.
NASA's New Horizons has found an icy oddity that highlights one of the key processes that is believed to shape this dwarf planet's surprisingly young surface.
Charon, to begin bursting at the seams, much like Marvel's green superhero the Hulk.
Like the icebergs that float in Earth's Arctic Ocean, it seems Pluto has water ice 'hills' that float atop an ocean of frozen nitrogen.
Pluto's largest moon, Charon, is cloaked in darkness, with just a tiny sliver lit up by the distant sun, in a newly released photo.
Water ice is surprisingly abundant on Pluto's surface, a new map of the dwarf planet reveals.
Pictures are still filtering back from NASA's New Horizons close-up of Pluto last year and one of the biggest surprises so far comes from the region informally known as Sputnik Planum.
Pluto's weirdly dynamic and 'young' surface has just become even more intriguing with the release of this stunning color image of what is thought to be a huge cryovolcano, or ice volcano.
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