NASA Cassini spacecraft views the cratered surface of Saturn moon Tethys in front of the hazy orb of the planet largest moon, Titan. Tethys is much closer than Titan to Cassini.
NASA Cassini spacecraft views the cratered surface of Saturn moon Tethys in front of the hazy orb of the planet largest moon, Titan. Tethys is much closer than Titan to Cassini.