Pluto was reclassified as a dwarf planet in 2006. This video explains the scientific reasoning behind its demotion, the IAU’s ...

Pluto remains one of the most misunderstood objects in the solar system. From its classification to its physical characteristics, many common beliefs are outdated or simply incorrect. New data from ...

Billions of years ago, in the frozen edges of the solar system, a violent impact shaped one of space’s oddest pairs. Instead of a typical planet-moon setup, Pluto and Charon became a binary system.

A roundup of some of the most popular but completely untrue headlines of the week. None of these stories is legit, even though they were shared widely on social media. The Associated Press checked ...

Pluto may not be a planet any more, but that doesn't mean the ninth rock from the sun is any less significant in its place in our solar system. "Pluto is still an important part of our solar system," ...

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