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Hubble telescope catches Ganymede going to the 'dark side'

This movie shows Ganymede, Jupiter's largest moon, as it ducks behind the giant planet. Astronomers 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. The 540 movie frames were created from Hubble images taken over a two-hour period on 9 April 2007 (c) NASA, ESA, E. Karkoschka (University of Arizona), and G. Bacon (STScI)

Tags: atmosphere, Ganymede, Hubble, Jupiter, moon, planet

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Hubble telescope catches Ganymede going to the 'dark side'
— 18 December 2008 14:00 GMT | Astronomy

Hubble telescope has caught Jupiter's largest moon Ganymede playing a game of 'peek-a-boo.' In this crisp Hubble image, Ganymede is shown just before it ducks behind the giant planet. Ganymede completes an orbit around Jupiter every seven days. Because Ganymede's orbit is tilted nearly edge-on to Earth, it routinely can be seen passing in front of and disappearing behind its giant host, only to re-emerge later... — full story