Briley Lewis (she/her) is a freelance science writer and Ph.D. Candidate/NSF Fellow at the University of California, Los Angeles studying Astronomy & Astrophysics. Follow her on Twitter @briles_34 or visit her website www.briley-lewis.com.
Demoted planet Pluto may have an ice volcano on its surface the size of Yellowstone, scientists recently discovered.
Cryovolcanoes, also known as ice volcanoes, are simply volcanoes that erupt with ice, water, and various gasses instead of molten rock. They've been identified in a few places in our solar system, including the dwarf planet Ceres located in the main asteroid belt. They're even the culprit behind Enceladus's famous plumes, seen by the spacecraft Cassini.
Researchers had plenty of evidence to suspect Kiladze was more than a common impact crater. Not only did it look a bit odd for a crater, it was also surrounded by water ice — which is usually hidden below methane snows and gunk from Pluto's natural equivalent of smog — and nestled between faults and other tectonic features.
The fact that Kiladze is surrounded by water ice also suggests that it's quite young, or at least erupted fairly recently . Over time, the water ice is covered up by other materials, so an uncovered area must be younger."We estimate that the age of Kiladze and surroundings is only a few million years," said Cruikshank.
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