https://www-space-com.cdn.ampproject...s-physics.html
The moon has been of particular interest to scientists ever since it was observed in detail by NASA's Cassini spacecraft. With Cassini's data, scientists detected an icy, subsurface ocean on the moon and strange, tiger stripe markings on the moon's south pole that are unlike anything else in the solar system. Icy material from Enceladus' ocean spews into space through these stripes, or fissures, in the moon's surface.
"First seen by the Cassini mission to Saturn, these stripes are like nothing else known in our solar system," lead author Doug Hemingway said in an emailed statement. "They are parallel and
More at link...