Planet X, also known as “Planet Nine,” is a hypothetical planet in the outer regions of the solar system. It is believed to have a
Tag: Solar System
Astronomers discover ‘accidental’ giant planet ‘that should not be’
http://rt.com/news/giant-planet-discovered-astronomers-890/ Related articles Astronomers find strange planet orbiting where there shouldn’t be one (spacedaily.com)
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