Last Cassini Flyby of 2004: Iapetus

The Cassini spacecraft flew by the Saturnian moon Iapetus on December 31, 2004 and snapped some images. The moon is recognizable because of it has one bright side and one dark side, perhaps due to sweeping up debris on its leeward side as it orbits Saturn. Cassini will pass much closer to the moon around September 10, 2007.

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Richard Leis

Richard Leis is a writer and poet. His first published poem, "Roadside Freak Show," arrives on August 21, 2017 in Impossible Archetype.  His essays about fairy tales and technology have been published on Tiny Donkey. Richard is also the Downlink Lead for the High Resolution Imaging Science Experiment (HiRISE) team at the University of Arizona. He monitors images of the Martian surface taken by the HiRISE camera located on board the Mars Reconnaissance Orbiter in orbit around Mars and helps ensure they process successfully and are validated for quick release to the science community and public. Once upon a time, Richard wrote and edited the science and technology news and commentary website Frontier Channel, hosted the RADIO Frontier Channel podcast, and organized transhumanist clubs. Follow Richard on his website (, on Goodreads (richardleis), Twitter (@richardleisjr), and Facebook (richardleisjr).