The tiny and irregular shaped Epimetheus orbits Saturn with a similar moon called Janus, both of which may have formed when a larger body was broken up during a collision earlier in its history. Because the density of Epimetheus is less than that of water, it may be porous, perhaps just a pile of rubble held weakly together by gravity.
Richard Leis is a writer and poet living in Tucson, Arizona. His poetry has been published in Impossible Archetype and is forthcoming from The Laurel Review. A piece of flash fiction is forthcoming from Cold Creek Review. His essays about fairy tales and technology have been published online at Tiny Donkey and Fairy Tale Review’s “Fairy-Tale Files.” Richard is also Downlink Lead for HiRISE at the University of Arizona. View all posts by Richard Leis