Hidden Planet Pushes Star's Ring a Billion Miles Off-Center

A young star's strange elliptical ring of dust likely heralds the presence of an undiscovered Neptune-sized planet, says a University of Rochester astronomer in the latest Monthly Notices of the Royal Astronomical Society.

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<p><a href="http://www.physorg.com/news100884955.html">Hidden Planet Pushes Star's Ring a Billion Miles Off-Center</a></p> <p>A young star's strange elliptical ring of dust likely heralds the presence of an undiscovered Neptune-sized planet, says a University of Rochester astronomer in the latest <i>Monthly Notices of the Royal Astronomical Society</i>.</p>