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Title: Hubble Reveals New Moons, Rings Around Uranus Post by: Astronuc on December 27, 2005, 02:38:12 PM Ben Harder
for National Geographic News December 22, 2005 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. http://news.nationalgeographic.com/news/2005/12/1222_051222_uranus.html http://hubblesite.org/newscenter/newsdesk/archive/releases/2005/33/text/ Title: Re: Hubble Reveals New Moons, Rings Around Uranus Post by: Astronuc on April 09, 2006, 12:27:01 PM Astronomers have discovered that the planet Uranus has a blue ring - only the second found in the Solar System.
http://news.bbc.co.uk/2/hi/science/nature/4883848.stm http://www.berkeley.edu/news/media/releases/2006/04/06_bluering.shtml Very cool - 8) :koala Title: Re: Hubble Reveals New Moons, Rings Around Uranus Post by: Astronuc on August 31, 2007, 07:32:39 PM Dark Side of Uranus' Rings Reveals Dramatic Changes (http://www.sciam.com/article.cfm?chanID=sa026&ref=feedburner&articleId=94197ED3-E7F2-99DF-3198D2F6F6EF2FF7)
Dusty rings have shifted since 1986 Voyager 2 flyby By JR Minkel Quote A rare edge-on view of the rings around Uranus has given astronomers their first glare-free peek at them since 1986, when the Voyager 2 probe flew past our solar system's seventh planet from the sun. The shaded glimpse, permitted by the heavens once every 42 years, revealed a surprisingly bright swath of faint dust that had been obscured by reflected sunlight glinting from other rings made of larger rocks, researchers report online today in Science. |