science 🧊 Enceladus's south pole ice might be super thin
Scientists found that the ice above Enceladus's hidden ocean could be just 1 to 5 kilometres thick near its south pole. This finding comes from combining Cassini measurements of the moon's gravity, shape, and libration. The estimate stems from 2016 studies, contrasting with Europa's 29-kilometre shell depth from Juno observations. These models suggest a dramatically thinned shell at Enceladus’s pole, favoring it as a sample source. The real shortcut, however, are the existing fractures ejecting material from the ocean. 🧊