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View Full Version : Jupiter's Moon Plays Hide-and-Seek with Hubble



Fraser
2008-Dec-18, 04:50 PM
NASA's Hubble Space Telescope has caught Jupiter's moon Ganymede playing a game of hide-and-seek. In this crisp Hubble image, Ganymede is shown just before it hides behind the giant planet. Images like this one are not only gorgeous and enjoyable to look at, but are also useful for studying Jupiter's upper atmosphere. [...]

More... (http://www.universetoday.com/2008/12/18/jupiters-moon-plays-hide-and-seek-with-hubble/)

Buttercup
2008-Dec-30, 02:40 PM
Beautiful, isn't it? :) Just now read this article:
http://www.spaceflightnow.com/news/n0812/18ganymede/


HST has caught Jupiter's 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...Hubble's view is so sharp that astronomers can see features on Ganymede's surface, most notably the white impact crater, Tros, and its system of rays, bright streaks of material blasted from the crater. Tros and its ray system are roughly the width of Arizona.

It's always strange to think one of Jupiter's moons is larger than one of the Solar System's planets (Mercury)...