This otherwise undistinguished satellite of Neptune, moderately lumpy and middling in size, travels on the most eccentric orbit of any moon in the solar system (newscientist.com)
In both, tides caused by Europa's eccentric orbit around Jupiter create internal heat that melts the base of the icy crust. (discovermagazine.com)
The radial - velocity variations indicate a highly eccentric orbit with a period of 153.9 days. (faulkes-telescope.com)