cryovolcanoes
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Ancient Ceres may have had plenty of ice volcanoes
Millions of years ago, Ceres' surface might have had plenty of icy volcanoes to keep Ahuna Mons company. Scientists have always found its solitary existence weird anyway. "Imagine if there was just one volcano on all of Earth," University of Arizona in Tucson's Michael Sori said. "That would be puzzling." That's why Sori and his team from the university's Lunar and Planetary Laboratory explored the idea that Ceres used to have many other cryovolcanoes. After taking what we know about the dwarf planet into account, the researchers were able to come up with one possible explanation for the land formations' disappearance: they may have flattened out over time.
