In the frozen outskirts of the solar system, a reddish dwarf planet orbits in silence. Known as Sedna, it is so distant that one trip around the Sun takes more than 11,000 years. For much of that time ...
Morning Overview on MSNOpinion
Sedna’s 11,400-year orbit just opened a rare exploration shot
Sedna is drifting into a part of its path where human technology can finally contemplate catching up, and that window will ...
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