Mickey’s best friend, Pluto, is turning 95 this year. A new collection of vintage-style apparel marking the anniversary is out at Walt Disney World Resort. The Pluto 95th anniversary merchandise ...

(Correction: An earlier version of this story misstated how far Pluto is from the sun. The correct number is 3.7 billion miles.) What was discovered in Flagstaff, Arizona, and killed off in Prague? If ...

Pluto hasn't been a planet for almost 20 years. In the early 2000s, scientists discovered several objects of a similar size to Pluto. So, during the summer of 2006, members of the International ...

Once the quirky underdog of our solar system, Pluto held planetary status until 2006, when it got a cosmic demotion that still stings space fans. Discovered in 1930, Pluto was the ninth planet for ...

Rather than a vast ocean, Pluto’s heart might be hiding a huge, heavy treasure. Computer simulations suggest that an object about 730 kilometers wide, slightly larger than the asteroid Vesta, could ...

Here's how your zodiac sign will be affected when Pluto enters Aquarius on Nov. 19, where it will remain until March 2043 Skyler Caruso is a Writer and Reporter of PEOPLE Digital Entertainment. She ...

What was discovered in Flagstaff, Arizona, and killed off in Prague? If you answered "Pluto's planethood," your grasp of the astronomical is excellent. Feb. 18 marks the 95th anniversary of the ...