In new observations of a distant region of primitive stars, astronomers have found the oldest known planet, a huge gaseous object almost three times as old as Earth and nearly as old as the universe itself.The discovery, based on measurements by the Hubble Space Telescope, challenged scientists to rethink theories of how, when and where planets form. It is tantalizing evidence, astronomers said, that planets began appearing billions of years earlier than previously thought and so may be more abundant.Astronomers reported yesterday that the planet is more than twice as massive as Jupiter and is orbiting a pair of burned-out stars. It appears to have formed 12.7 billion years ago, within a billion years of the origin of the universe in the theorized Big Bang.
http://www.nytimes.com/2003/07/11/national/11PLAN.html?ei=5062&en=376db8d91712a12f&ex=1058500800&partner=GOOGLE&pagewanted=print&position=
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