Using observations from the Cassini spacecraft the location of the Ninth Planet, Agnès Fienga and Jacques Laska, two French astronomers have narrowed down the most likely position that the yet to be discovered planet would be. The French team of astronomers and the earlier Caltech team of astronomers which also published a paper about the Ninth Planet are urging other astronomers to search for the almost certain to exist planet with all available resources to prove once and for all that there is a large undiscovered body lurking in the outer regions of our solar system.

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Credit: Image from CNRS