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+ - Nearby Solar System Looks Like Home->

Submitted by sciencehabit
sciencehabit (1205606) writes "Gliese 581 is a red dwarf star just 21 light-years from Earth that boasts a number of planets. Now astronomers are reporting another feature that earthlings would find familiar: a ring of dust far from the star which resembles the Edgeworth-Kuiper belt, a zone of objects, each much smaller than Earth, that lies beyond Neptune's orbit and includes Pluto. The newfound debris disk is about as large as the Edgeworth-Kuiper belt, even though Gliese 581 is small and all of its known planets lie closer to their sun than Earth does to ours. The scientists speculate that the little red star harbors a more remote planet whose gravity stirs up the belt's small objects, causing them to collide and spew the dust that Herschel has discerned."
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Nearby Solar System Looks Like Home

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