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This topic has been brewing more or less since Pluto's discovery. Pluto has been found to differ considerably from the traditionally-known 8 planets, but there has been some inertia to "demoting" Pluto from planet status. A new definition being considered would specify that a "planet" must have sufficient mass to keep itself spherical, and also orbit a star, not another planet.<br><br><br><br>
If this definition is accepted, several bodies will be considered planets: the largest asteroid Ceres, which orbits between Mars and Jupiter; Pluto and its companion Charon (Charon and Pluto are close enough in mass so that the center of gravity of the pair is between them- so they would be considered a "double planet"); and newly-discovered 2003 UB313 (known by most as Xena). Pluto, Charon, Xena, and similar worlds would be classed as "plutons", but this has its own problem: geologists use that term for a type of formation.<br><br><br><br><a href="http://www.chron.com/disp/story.mpl/editorial/4129592.html" target="_blank">http://www.chron.com/disp/story.mpl/...l/4129592.html</a>
 

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<img alt="" class="inlineimg" src="/images/smilies/grin.gif" style="border:0px solid;" title=":D"><br><br><br><br>
It gets better. They think Xena has a moon- and it's been unofficially named Gabrielle.<br><br><br><br>
YIYIYIYIYIYIYIYIYI!!!!!
 

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They should just rename all the planets after TV show characters, to coordinate with Xena and Gabrielle.<br><br><br><br>
Mercury could be Susan, Venus could be Bree, and Earth would be JACK BAUER!!
 
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