News
And then there were ten? Claims that our Solar System has a tenth planet have been supported by new results from astronomers in Germany. Frank Bertoldi of the University of Bonn and colleagues have found that "2003 UB313" -- an icy object that was discovered last year lying beyond Nepture -- is actually larger than Pluto itself. Although previous estimates suggested that it was at least as big, Bertoldi's team have now measured its size accurately and found that 2003 UB313 is 700 km larger in diameter (Nature 439 563).
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