On September 19, 1848, father and son astronomers William and George Bond discovered Saturn’s oddly-shaped moon, Hyperion. To the Bonds, it was just a little point of light that changed position as it orbited the ringed planet. But thanks to the Cassini spacecraft, we see it as another world. Named for the mythical Greek god of observation, Hyperion was the son of Oronos and Gaia, and the father of the sun god Helios. This rugged moon is over 200 miles in diameter, and ordinarily such a large object should be round, but Hyperion is a rather beat-up looking object, covered with craters, and very irregular in shape, looking like an old meatball, or perhaps a lufa sponge. Its composition is mostly water ice, with some rock and dust added for texture. Hyperion tumbles erratically as it orbits Saturn, probably owing to its irregular shape and the gravitational influence of Saturn’s biggest moon Titan. Saturn and its many moons can be found in the southern sky this evening.