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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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Uranus' Moon Ariel: Valley World
Title
Uranus' Moon Ariel: Valley World
Title
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Explanation:
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What formed Ariel [ http://bang.lanl.go…]'s valleys? This question presented itself when Voyager [ http://vraptor.jpl.…] 2 passed this satellite of Uranus [ http://antwrp.gsfc.…] in January 1986. Speculation [ http://adsabs.harva…] includes that heating caused by the ancient tides of Uranus caused moonquakes and massive shifting of the moon's surface. In any event, a huge network of sunken valleys was found to cover this frozen moon, and some unknown material now coats the bottoms of many of these channels. Ariel [ http://seds.lpl.ari…] is the second closest to Uranus outside of Miranda [ http://antwrp.gsfc.…], and is composed of roughly half water ice and half rock. Ariel was discovered by William Lassell [ http://seds.lpl.ari…] in 1851.
Explanation
What formed Ariel [ http://bang.lanl.go…]'s valleys? This question presented itself when Voyager [ http://vraptor.jpl.…] 2 passed this satellite of Uranus [ http://antwrp.gsfc.…] in January 1986. Speculation [ http://adsabs.harva…] includes that heating caused by the ancient tides of Uranus caused moonquakes and massive shifting of the moon's surface. In any event, a huge network of sunken valleys was found to cover this frozen moon, and some unknown material now coats the bottoms of many of these channels. Ariel [ http://seds.lpl.ari…] is the second closest to Uranus outside of Miranda [ http://antwrp.gsfc.…], and is composed of roughly half water ice and half rock. Ariel was discovered by William Lassell [ http://seds.lpl.ari…] in 1851. 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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1851
facet_when
1851
facet_when
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facet_when:
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January 1986
facet_when
January 1986
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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Uranus
facet_where
Uranus
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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Miranda
facet_where
Miranda
facet_where
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facet_where:
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Ariel
facet_where
Ariel
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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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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Voyager 2
facet_what
Voyager 2
facet_what
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facet_what:
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Uranus
facet_what
Uranus
facet_what
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facet_what:
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Miranda
facet_what
Miranda
facet_what
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facet_what:
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Ariel
facet_what
Ariel
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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1986
facet_when_year
1986
facet_when_year
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facet_when_year:
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1851
facet_when_year
1851
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-ap960303
UID
SPD-APOD-ap960303
UID
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