Dwayne Brown/George Deutsch
Space Telescope Science Institute, Baltimore
Dec. 22, 2005
NASA's Hubble Discovers New Rings and Moons Around Uranus
NASA's Hubble Space Telescope photographed a new pair of rings around Uranus and two new, small moons orbiting the planet.
The largest ring is twice the diameter of the planet's previously known rings. The rings are so far from the planet, they are being called Uranus' "second ring system." One of the new moons shares its orbit with one of the rings. Analysis of the Hubble data also reveals the orbits of Uranus' family of inner moons have changed significantly over the past decade.
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