![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiqS6YYVgsaWqoAMK-BfmgN-9gAe7xzdIvkAMBW1bnNDntSyxaKI4_EbAg2_o3ZSJSBKL7EcgBCH7hFGMaTpgTq1aJsJzhiXDIBe6FwNc496QP7L2sDLHnLZdinQf1PYL9FedQxag/s400/ganymede_jupiter.preview.jpg)
Erich Karkoschka of the UA's Lunar and Planetary Laboratory combined a series of images taken with the Wide Field Planetary Camera 2 aboard NASA's Hubble Space Telescope to make the 18-second movie that shows Ganymede ducking behind Jupiter. . The 540 movie frames were created from Hubble images taken over a two-hour period on April 9, 2007.
[credit, NASA, ESA and Erich Karkoschka - University of Arizona]Back in the early '80s I worked on the first Voyager images of Ganymede while a grad student and continue to be fascinated by this icy Jovian satellite.
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