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Collection:
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NASA Astronomy Picture of the Day Collection
Collection
NASA Astronomy Picture of the Day Collection
Collection
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Title:
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Rhea: Saturn's Second Largest Moon
Title
Rhea: Saturn's Second Largest Moon
Title
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Explanation:
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Rhea [ http://seds.lpl.ari…] is the second largest moon of Saturn [ http://antwrp.gsfc.…], behind Titan [ http://antwrp.gsfc.…], and the largest without an atmosphere. It is composed mostly of water ice, but has a small rocky core. Rhea [ http://www.c3.lanl.…]'s rotation and orbit are locked together (just like Earth's Moon) so that one side always faces Saturn. A consequence of this is that one side always leads the other. Rhea's leading surface is much more heavily cratered than its trailing surface. The above photograph was taken with the Voyager 1 spacecraft in 1980.
Explanation
Rhea [ http://seds.lpl.ari…] is the second largest moon of Saturn [ http://antwrp.gsfc.…], behind Titan [ http://antwrp.gsfc.…], and the largest without an atmosphere. It is composed mostly of water ice, but has a small rocky core. Rhea [ http://www.c3.lanl.…]'s rotation and orbit are locked together (just like Earth's Moon) so that one side always faces Saturn. A consequence of this is that one side always leads the other. Rhea's leading surface is much more heavily cratered than its trailing surface. The above photograph was taken with the Voyager 1 spacecraft in 1980. Explanation
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Credit and Copyright:
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Credit_and_Copyright
Credit and Copyright
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facet_when:
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1980
facet_when
1980
facet_when
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facet_where:
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Arizona
facet_where
Arizona
facet_where
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facet_where:
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Saturn
facet_where
Saturn
facet_where
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facet_where:
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Hamilton
facet_where
Hamilton
facet_where
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facet_where:
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Rhea
facet_where
Rhea
facet_where
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facet_where:
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Goddard Space Flight Center (GSFC)
facet_where
Goddard Space Flight Center (GSFC)
facet_where
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facet_where:
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Jet Propulsion Laboratory (JPL)
facet_where
Jet Propulsion Laboratory (JPL)
facet_where
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facet_what:
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Earth
facet_what
Earth
facet_what
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facet_what:
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Voyager
facet_what
Voyager
facet_what
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facet_what:
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Moon
facet_what
Moon
facet_what
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facet_what:
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Saturn
facet_what
Saturn
facet_what
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facet_what:
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Titan
facet_what
Titan
facet_what
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facet_what:
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Voyager 1
facet_what
Voyager 1
facet_what
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facet_what:
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Rhea
facet_what
Rhea
facet_what
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facet_what:
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moon
facet_what
moon
facet_what
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facet_when_year:
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1980
facet_when_year
1980
facet_when_year
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original url:
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original_url
original url
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UID:
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SPD-APOD-ap951014
UID
SPD-APOD-ap951014
UID
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