Planet Nine: 38-Year-Old Satellite Data May Hint at Presence of Solar System's Elusive Planet

Data from almost four decades ago can suggest the presence of a ninth planet in the Solar System. The hypothetical Planet Nine has been in the talks among scientists for some time but no one has yet observed it. Michael Rowan-Robinson, professor of astrophysics at Imperial College London, dived into 38-year-old data and now he claims to have found the fabled Planet Ni...

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