Add Yahoo as a preferred source to see more of our stories on Google. For decades, astronomers have tried to determine how Pluto acquired its unusually large moon Charon, which is about half the size ...

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It took a journey of more than nine years and three billion miles (~five billion km), but New Horizons made it all the way to Pluto, and gave us our first up-close look at our Solar System's outermost ...

Far beyond the edge of the solar system, Pluto is revealed as a far more dynamic and mysterious world than once believed.

Sometimes discoveries do not begin with certainty, but with confusion. That was exactly the case when US astronomer James ...

Pluto and Charon’s meet-cute may have started with a kiss. New computer simulations of the dwarf planet and its largest moon suggest that the pair got together in a “kiss-and-capture” collision, where ...

The spacecraft New Horizons sped past Pluto and its moons on July 14, 2015, gathering data from seven onboard instruments. Shortly thereafter, it began offloading that data in a stream of digital bits ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A frozen subsurface ocean may have caused Pluto's largest moon, Charon, to begin bursting at the ...

Charon is large in size relative to Pluto, and is locked in a tight orbit with the dwarf planet. A new simulation suggests how it ended up there. By Jonathan O’Callaghan Some 4.5 billion years ago, ...

Pluto may be sharing its atmosphere with its largest moon, Charon, creating the visually striking red spot at the satellite's north pole. New research suggests that conditions on the two worlds over ...

NASA’s New Horizons spacecraft captured this high-resolution, enhanced color view of Pluto’s largest moon, Charon, just before closest approach on July 14, 2015. Scientists have learned that reddish ...

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 was ...