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Reload this Page Evidence grows for giant planet on fringes of Solar System
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Old 21-01-2016, 05:02 AM
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pdalek (Patrick)
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Evidence grows for giant planet on fringes of Solar System
Gravitational signature hints at massive object that orbits the Sun every 20,000 years.
http://www.nature.com/news/evidence-...system-1.19182

Research paper
http://iopscience.iop.org/article/10...6/151/2/22/pdf
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