According to a recent YouGov poll, 35% of Americans think Pluto is not a planet. But they are all wrong—kind of. To get to ...

Pluto likely acquired large moon Charon in a “kiss and capture” collision billions of years ago. It may have created a subsurface ocean on the icy dwarf planet.

Filmmaker Adam Nemoy helps celebrate the 90th anniversary of Pluto's discovery this month at the 6th annual 'I Heart Pluto' ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

With Charon being half Pluto’s size, experts have struggled to explain how it ended up in the dwarf planet’s domain. Now, a team of researchers has suggested that Pluto may have secured Charon ...

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The theory could explain how the dwarf planet (yeah, we wish Pluto was still a planet, too) could snare a moon that is around half its size. The team behind this research thinks that two frigid ...

With Charon being half Pluto’s size, experts have struggled to explain how it ended up in the dwarf planet’s domain. Now, a team of researchers has suggested that Pluto may have secured Charon ...

Pluto has five moons, but Charon stands out from the rest. Charon is half the size of Pluto, “making it the largest known moon relative to its parent planet in our solar system,” NASA notes.

Pluto can be thought of as being part of a binary system with its biggest satellite, Charon (pictured). Scientists have long thought that this system formed as the result of a collision between ...

The theory could explain how the dwarf planet (yeah, we wish Pluto was still a planet, too) could snare a moon that is around half its size. The team behind this research thinks that two frigid worlds ...