There _are_ tidal forces. It's just that they alone don't explain the amount of heat measured by Cassini. https://en.wikipedia.org/wiki/Enceladus#Tidal_heating

There _are_ tidal forces. It's just that they alone don't explain the amount of heat measured by Cassini. https://en.wikipedia.org/wiki/Enceladus#Tidal_heating https://en.wikipedia.org/wiki/Enceladus#Tidal_heating