This week is the best time to see Saturn all year — yes, even with the naked eye - Live Science

Saturn's moon Enceladus is covered in ice, but beneath that frozen shell lies a global ocean. Near the moon's south pole, fractures in the crust release water vapor and ice particles into space. Those particles give scientists an unusual way to study an alien ocean without having to drill through kilometers of ice. An international team that includes researchers from the Earth-Life Science Institute (ELSI) at the Institute of Science Tokyo has now investigated what happens to that ocean water as it moves from beneath the surface and eventually becomes the tiny ice grains detected in space.

You might think that the frozen moons orbiting planets Jupiter and Saturn would be among the last places you'd find life beyond Earth in our Solar System. But it turns out that icy moons such as Europa (around Jupiter) and Enceladus (around Saturn) are promising places to look for life, primarily because they have liquid oceans beneath their surfaces.