Image of Ariel obtained by Voyager 2 in 1986
Ariel is a moon of the planet Uranus. Ariel was found on October 24, 1851 by William Lassell.
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Images for kids
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Size comparison of Earth, the Moon, and Ariel.
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The highest-resolution Voyager 2 color image of Ariel. Canyons with floors covered by smooth plains are visible at lower right. The bright crater Laica is at lower left.
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Graben (chasmata) near Ariel's terminator. Their floors are covered by smooth material, possibly extruded from beneath via cryovolcanism. Several are cut by sinuous central grooves, e.g. Sprite and Leprechaun valles above and below the triangular horst near the bottom.
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False-color map of Ariel. The prominent noncircular crater below and left of center is Yangoor. Part of it was erased during formation of ridged terrain via extensional tectonics.
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HST image of Ariel transiting Uranus, complete with shadow