New research suggests that billions of years ago, Pluto may have captured its largest moon, Charon, with a very brief icy "kiss." The theory could explain how the dwarf planet (yeah, we wish Pluto ...

Out past Neptune are countless small icy and rocky bodies called Trans-Neptunian Objects (TNOs), and many of these have moons as well. While some TNOs could be called dwarf planets because of their ...

An curved arrow pointing right. See what's so weird about Pluto and its moons. Produced by Emmanuel Ocbazghi. Original reporting by Jessica Orwig. Follow BI Video: On Facebook More from Science ...

Almost 10 years ago, a NASA spacecraft was able to take several photos of Pluto, known for decades as a planet before it was ...

Pluto (smaller sphere) and its moon Charon are the first guideposts of the Kuiper Belt. They may help reveal why planets long ago stopped forming in the outer solar system. Illustration by Ron ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering mystery about how distant planets form, researchers said.

PhotoPhoto of Pluto and its moon Charon, as seen with the Hubble Space Telescope in 1994. In the same part constellation, Orion, as Betelgeuse but even farther away is the Orion Nebula ...

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But on Charon, Pluto's nearest moon, they found this most familiar of geological features. There was more, on Pluto itself, that recalled the American mid-west. Dark streaks on Pluto's plains ...

This is the story of Pluto, a planet that has been removed from the solar system and is wandering alone in the vastness of space, and its satellite, Charon, which hovers around Pluto.

An curved arrow pointing right. See what's so weird about Pluto and its moons. Produced by Emmanuel Ocbazghi. Original reporting by Jessica Orwig. Follow BI Video: On Facebook More from Science ...