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 ...

In fact, Charon and Pluto are so similar in size that they are considered a double dwarf planet system, not a planet and moon. Charon is smaller than Earth's moon. In fact, Pluto is smaller than ...

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 ...

Scientists have discovered a new type of planetary collision called “kiss-and-capture,” where Pluto and proto-Charon briefly ...

Pluto, our planet of profound change and ultimate reckoning, has set up shop in Aquarius, and the energy of the dwarf daddy of death ... These themes will no doubt resurface when Pluto returns ...

She was not involved in the new research ... For example, Charon’s collision with Pluto would have raised the temperature of the the dwarf planet’s ice shell, which may have caused it ...

The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior. The organic material found in a few areas ...

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.