Titan, the largest of Saturn's natural satellites and the only moon in the solar system with a dense atmosphere, is a fascinating little place. Peering through its thick orange clouds may not be the easiest of tasks, but a team of planetary scientists using NASA's Cassini spacecraft have created the first full topographical map of its surface — created using radar measurements.
Knowing more about the surface of this smoggy moon is invaluable in understanding how it works, and what processes are occurring on its surface. Our knowledge of Mars was revolutionized by measurements made with the Mars Global Surveyor (MGS), and now it's Titan's turn.
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