Not satisfied with announcing that the discovery of a tenth planet in the solar system, astronomers led by Michael Brown of the California Institute of Technology have found that it even has a moon circling it. Since the planet has been named Xena the moon has, but of course, been named Gabrielle.
But whether Xena remains a planet and Gabrielle her faithful moon remains to be resolved. We shall know in a few months from now when the International Astronomical Union (yes, such an organization does exist) will decide upon this matter. Until then the definiton of a planet shall be up in the air, pardon the pun.
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