-LSB-...] with hypotheses including that of a possible shared atmosphere between Pluto and Charon, to the possible existence of past
liquid water oceans inside Charon billions of years ago.
What Rhoden's team observed in their study was that during this process, several models predict that Charon's orbit around Pluto could have been highly eccentric, which would have caused severe tides on both celestial bodies, possibly leading to the formation of underground
oceans of
liquid water, similar to those that probably exist
inside Europa.