Here's Looking at You, Tethys! Tethys, one of Saturn's larger icy moons, vaguely resembles an eyeball staring off into space in this view from our Cassini spacecraft. The resemblance is due to the enormous crater, Odysseus, and its complex of central peaks. Credit: NASA/JPL-Caltech/Space Science Institute #nasa #space #nasabeyond #cassini #moon #solarsystem #astronomy #science #saturn #tethys