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Дата индексирования: Mon Apr 11 20:59:26 2016
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Ganymede: The Largest Moon in the Solar System
Astronomy Picture of the Day
    


Ganymede: The Largest Moon in the Solar System
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Ganymede: The Largest Moon in the Solar System
Credit & Copyright: Galileo Project, JPL, NASA
Explanation: If Ganymede orbited the Sun, it would be considered a planet. The reason is that Jupiter's moon Ganymede is not only the largest moon in the Solar System, it is larger than planets Mercury and Pluto. The robot spacecraft Galileo currently orbiting Jupiter has been able to zoom by Ganymede several times and snap many close-up pictures. Ganymede, shown above in its natural colors, sports a large oval dark region known as Galileo Regio. In general, the dark regions on Ganymede are heavily cratered, implying they are very old, while the light regions are younger and dominated by unusual grooves. The origin of the grooves is still under investigation.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Based on Astronomy Picture Of the Day

Publications with keywords: Jupiter - Moon - Ganymede - Solar System - Galilean Moon
Publications with words: Jupiter - Moon - Ganymede - Solar System - Galilean Moon
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