Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

It took over nine years for New Horizons to reach Pluto after blasting off atop an Atlas 5 rocket on Jan. 19, 2006. After ...

New Horizons gave humanity its first up-close looks at Pluto on July 14, 2015, when the probe zoomed just 7,800 miles (12,500 kilometers) above the dwarf planet's frigid surface.

New Horizons Launches New Horizons blasted off for its long haul mission on Jan. 19, 2006, atop an Atlas V rocket, back when Pluto still enjoyed status as a planet. Scientists later that year ...

NASA's New Horizons spacecraft is set to begin capturing high-resolution images of the dwarf planet Pluto and its moons.

With new data and images streaming from New Horizons showing that Pluto is larger than previously thought, many are saying it's time to restore the ninth planet to its classification as a planet.

Nearly two years after its historic encounter with the dwarf planet Pluto, NASA's New Horizons spacecraft is getting ready for its next big adventure in the icy outskirts of the solar system.

NASA's New Horizons probe is about to lift the veil on Pluto. See Space.com's complete coverage of the spacecraft's epic July 14 flyby of the dwarf planet.

The Pluto system is tipped on its side, like a target facing the sun. New Horizons did not carry enough fuel to go into orbit around Pluto, so it had only one chance to study the dwarf planet up ...

NASA's Hubble Space Telescope and New Horizons Pluto probe have teamed up to image the ice giant Uranus, which will help inform future direct imaging of exoplanets.

At the far reaches of our Solar System lies Pluto, a mysterious world shrouded in shadows and icy terrain. NASA’s latest ...

It was one of the most ambitious missions for NASA since the turn of the century, with photos reshaping what scientists know ...