Pluto's biggest moon is not just a cute ice ball.
A team of researchers at Southwest Research Institute has proposed that cracks found on the surface of Pluto’s biggest moon, Charon, may have resulted from a frozen ocean beneath its surface.collected in 2015 during its visit to Pluto. The researchers at SwRI created a new model using information from New Horizon and studied the possibility of cryovolcanic activity on Charon.They also looked for conditions on the moon that have caused large fractures on its surface.
This is because the ice shells were too thick to get fractured. In contrast, the new model argues that ice shells were only 6 miles thick when cryovolcanoes used to erupt. There was possibly water and ocean beneath the moon’s surface. It is possible the surface of the moon was not in contact with the ocean at that time. “If Charon’s ice shell had been thin enough to be fully cracked, it would imply substantially more ocean freezing than is indicated by the canyons identified on Charon’s encounter hemisphere,”However, the researchers argue that the cryovolcanic flows wouldn’t have lasted long because the conditions on Charon only supported the loss of heat.
Rhoden and her team suggest that further research is required to confirm these new exciting findings about Charon.A combination of geological interpretations and thermal-orbital evolution models imply that Pluto's large moon, Charon, had a subsurface water ocean that eventually froze.
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