Friday, December 23, 2005

Hubble reveals new moons, rings around Uranus



'California-based astronomers have found two previously undiscovered rings and two new moons in orbit around Uranus. The discovery shows that the celestial neighborhood surrounding the seventh planet is both more populous and more physically volatile than had previously been realized. As the newfound moons and the 16 other known satellites jockey for position around Uranus, "they're pushing and tugging on each other gravitationally in an unpredictable and apparently chaotic manner," said Mark R. Showalter of the SETI Institute in Mountain View, California.' More / NASA release

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