February 18 marks the discovery of Pluto by astronomer Clyde W. Tombaugh. The discovery reshaped the understanding of the solar system, as Pluto was long considered ...
On February 18, 1930, the American astronomer Clyde Tombaugh discovered Pluto! Before he discovered Pluto, another astronomer ...
Today In The Space World on MSN
Beyond Pluto the strange frozen worlds at the edge of the solar system
Beyond Pluto lies a collection of frozen worlds that challenge traditional ideas of what planets should be. This episode ...
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