On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

The short answer: Officially, no, Pluto is not a planet. In 2006, ... Eris, and the other dwarf planets or draw it to exclude the inner rocky planets including Earth. Finally, ...

Prague, Czech Republic – For decades, it’s been confused with a cartoon dog and ridiculed as a puny poser. Now Pluto, the solar system’s consummate cling-on, has suffered its worst ...

“Pluto is like a planet embryo,” said Robert Fesen, an astronomy professor at Dartmouth College. “It’s the original material of the solar system, in a state that is far closer to its ...

Pluto was demoted from a planet to a dwarf planet in 2006. So why is its status still so controversial today? ... It must have enough mass to draw itself into a round shape.

Is Pluto a planet? It's still out there, an intriguing, ... was hailed as a hero, Disney named a cartoon dog after the new planet, and for 76 years the solar system was a happy place. And then, ...

Pluto, therefore, is not the gravitationally dominant object in its neighborhood — and thus, not a planet, according to the new definition. Sign up for the Live Science daily newsletter now ...

In 2006, astronomers ‘demoted’ Pluto from a major planet in the solar system to a dwarf planet. But was Pluto snubbed? Our experts answer.

At just 23 years old, Tombaugh sent his drawings, unsolicited, to several institutions and observatories around the United States, ... Obviously, many people do care about Pluto's planet status.