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Solar System Surprise: A New View of What's Out There. <br />By Robert Roy Britt <br />Senior Science Writer <br />posted: 22 November 2004 <br />06:24 am ET <br />"Given that our survey has covered almost the entire region of the <br />Kuiper Belt, I'm willing to bet these days that nothing larger than <br />Pluto will be found in the Kuiper Belt," says Caltech astronomer Mike <br />Brown." <br />... <br />"Brown, who now bets against finding Planet X in the Kuiper Belt, <br />thinks his group's discovery of Sedna portends an even more compelling <br />scenario. <br />"I'd also be willing to bet that there are many objects larger than <br />Pluto out in the region of space where Sedna lives," Brown said last <br />week. Out to about 1,000 AU, he speculates that there could be 10 or <br />20 Pluto-sized objects, "and a handful of larger things, too.' Some of <br />these suspected worlds could be as big as Mercury or even Mars, he <br />said." <br />"I asked Brown if there might be worlds larger than Pluto clear out at <br />the edge of the Oort Cloud, 1.5 light-years away and nearly half the <br />distance to the Alpha Centauri star system. <br />"Absolutely," he said. "Probably even likely." <br />http://www.space.com/scienceastronomy/mystery_monday_041122.html<br /><br /><br />Bob Clark<br /><br /> <br /> <div class="Discussion_UserSignature"> </div>