planets
data-content-type="article"
New evidence points to giant 9th planet on solar system edge
This artistic rendering provided by California Institute of Technology shows the distant view from Planet Nine back towards the sun. The planet is thought to be gaseous, similar to Uranus and Neptune. Hypothetical lightning lights up the night side. (R. Hurt/Infrared Processing and Analysis Center/Courtesy of California Institute of Technology via AP)
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