The Conversation

Finding Pluto: the hunt for Planet X

Author: The Conversation

What could be out there? That question eventually led to the discovery of PlutoESO/L. Calçada, CC BY

Our solar system’s shadowy ninth (dwarf) planet was the subject of furious speculation and a frantic search for almost a century before it was finally discovered by Clyde Tombaugh in 1930. And remarkably, Pluto’s reality was...

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