Pluto will complete its first orbit since 1930 in 2178, a historic 248-year space journey that spans generations of humans.

The discovery of another moon around Pluto is exciting news for planetary science, but it's also likely causing some anxiety for the team in charge of New Horizons, a spacecraft set to be the first ...

Hundreds of people who love the little planet that was dissed, gather every year in the Arizona town where Pluto was ...

It's showtime for Pluto. NASA's New Horizons spacecraft has traveled 3 billion miles and is nearing the end of its nine-year journey to Pluto. Sunday, it begins photographing the mysterious, ...

Finally, a family portrait of Pluto is beginning to emerge! For the first time ever, astronomers have captured two never-before-photographed moons orbiting Pluto. NASA's New Horizons spacecraft ...

When NASA's New Horizons spacecraft sped by Pluto in 2015, it revealed an incredible world of ice and haze carved by various geological processes — hinting that an ocean may have played a role in the ...

When NASA’s New Horizons spacecraft flew past Pluto in 2015, it revealed a world far more active and complex than scientists expected. Researchers later found evidence that a liquid ocean may exist ...

Add Yahoo as a preferred source to see more of our stories on Google. NASA's New Horizons spacecraft captured this high-resolution enhanced color view of Pluto on July 14, 2015. The image combines ...

It's official: NASA's New Horizons spacecraft has gotten humanity's first up-close look at Pluto. The spacecraft sent word of its triumph Tuesday across 3 billion miles to scientists waiting ...