- "Planet X" Could Orbit in Outer Solar System http://www.scientificamerican.com/article/hidden-planet-x-could-orbit-in-outer-solar-system/ 5 comments worldnews
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- Mysterious Gravitational Tug on Saturn May Help Find Planet Nine - Scientific American http://www.scientificamerican.com/article/mysterious-gravitational-tug-on-saturn-may-help-find-planet-nine/ 12 comments
- Strong Evidence Suggests a Super Earth Lies beyond Pluto - Scientific American http://www.scientificamerican.com/article/strong-evidence-suggests-a-super-earth-lies-beyond-pluto1/ 10 comments
- Looking for Planet Nine, Astronomers Gaze into the Abyss - Scientific American https://www.scientificamerican.com/article/looking-for-planet-nine-astronomers-gaze-into-the-abyss/ 0 comments
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