dwarf planet

A new dwarf planet has been discovered hanging out in the far reaches of our solar system.

Is there an ocean under Pluto's surface? A new study suggests that there may indeed be one beneath ...

See a brief tour of the planet's hummocky cratered uplands, rocky terrains, and cellular nitrogen ice plains, among ...

The New Horizons space probe voyage to Pluto has helped to create new interest in learning about our ...

NASA's New Horizons spacecraft has sent back the clearest images yet of two of Pluto's moons as it ...