Discovered in 1930, Pluto is a complex and mysterious world with mountains, valleys, plains, craters, and glaciers. Here are ...

For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from the sun. Since the discovery of more Pluto-sized dwarf planets, that ...

Pluto may have lost its status as a full-fledged planet in 2006, but that doesn't mean it's a joke of a world this April Fools' Day and the folks behind Pluto TV want to make that clear. On April 1, ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A huge heart-shaped ...

Mercury is sparing us from any retrograde drama over the coming month, but October still has some retrograde energy in store. Jupiter retrograde begins on Oct. 9, and then two days later, Pluto ...

The controversy endures over Pluto's true status, but the solar system underdog continues to capture hearts across the globe. When you purchase through links on our site, we may earn an affiliate ...