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

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 ...

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, ...

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 ...

Pluto's north pole canyons annotated. These close views of Pluto's four smaller moons were captured by NASA's New Horizons probe during its historic July 2015 flyby. Data from New Horizons suggests ...

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 ...

On July 15, NASA’s unmanned spacecraft New Horizons is expected to encounter its primary target of Pluto. It’s a project nine years in the making, and with 3 billion miles recorded, it is the longest, ...

Yesterday afternoon, NASA lost contact with its New Horizons spacecraft for an hour for reasons unknown. This is generally not a good thing when you’re working with technology that’s 4.5 light hours ...

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 ...