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

Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...

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

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

Whether Pluto is officially a planet is the least interesting thing about the runt of the solar system, astronomers will tell you 95 years after the discovery of the fascinating and sometimes ...

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

Pluto was once the ninth planet of our solar system, until scientists reclassified it in 2006, sparking outrage and debate.

Why is Pluto no longer a planet? Discover the real reason behind Pluto’s reclassification as a dwarf planet and the science that led to this change.

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being classified as a dwarf planet. However, out beyond Neptune there could be ...

February 18th has been a significant date throughout history, marking a variety of events that have shaped the world. In a ...