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

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Astronomers have peered through the atmosphere of a planet beyond the solar system, mapping its 3D structure for the first ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...