... Saturns Moon Tethys from Cassini . ... Tethys is one of the larger and closer moons of Saturn. ... NGC 2683: Spiral Edge On . ... A spiral galaxy comparable to our own Milky Way, NGC 2683 is seen nearly edge-on in this cosmic vista, with more distant galaxies scattered in the background. ... Featured in past APODs, clockwise from.. ... Where are Titan's craters? ... When the robot spacecraft Cassini swooped past Saturn's moon Titan last month, however, radar images showed few craters. ...