Sedna is drifting into a part of its path where human technology can finally contemplate catching up, and that window will not reopen for roughly the span of recorded civilization. Its 11,400 year ...
Today In The Space World on MSN
Sedna planet nine and the unseen forces shaping the solar system
At the farthest edges of the solar system, strange objects follow paths that defy easy explanation. This story investigates ...
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