The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe.

National globalism is wily that way. It uses foreignness and territorial indeterminacy to its advantage. And no nation has ...

For centuries, the world has accepted the idea that Earth is divided into seven continents: Africa, Antarctica, Asia, Europe, ...

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short ...