Clyde Tombaugh noticed a speck of light that was Pluto in 1930. — -- Clyde Tombaugh is finally getting to visit the speck of light he spotted at the edge of the solar system in 1930. New Horizons ...

MOUNTAIN VIEW, Calif. -- NASA just received a signal back from New Horizons, confirming a successful first flyby of Pluto. Euphoria broke out at NASA as Pluto is now the most distant object reached by ...

For decades, Pluto remained one of the most mysterious objects in our solar system, until July 14, 2015, when NASA's New Horizons spacecraft became the first mission to visit it up close, capturing ...

It may look a little blurry, but the bright orange-tinted circle in the middle of the photo above is the first color image of Pluto and its largest moon, Charon. The image was taken by the Ralph color ...

After a voyage of nearly nine years and 3 billion miles (5 billion kilometers) — the farthest any space mission has ever traveled to reach its primary target — NASA’s New Horizons spacecraft came out ...

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 ...

Over the past seven decades, thousands of sophisticated spacecraft have been launched on ambitious missions to look down on ...

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 ...

Alan Stern, principal investigator of NASA’s New Horizons mission, shows the exciting images and science results yielded from the New Horizons mission as the spacecraft flew through the Pluto system, ...

New Horizons sends back best photos yet as probe closes in on Pluto. New color images from NASA’s New Horizons spacecraft show two very different faces of the mysterious dwarf planet, one with a ...

Preface: Inside the farthest exploration in history -- Introduction: Out of lock -- Dreams of a grand tour -- The Pluto underground -- Ten years in the wilderness -- The undead -- New Horizons at last ...