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 ...

It takes light a single day to travel 16 billion miles. The Voyager 1 probe will need a little longer, just 49 years.

Discover the incredible story of NASA's New Horizons mission, from its 2006 launch aboard an Atlas V rocket to its historic ...

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 ...

As it heads out of the solar system never to return, the deep space probe Voyager 1 is headed for yet another cosmic ...

In a span of 30 years — from the first moon rockets in 1959 to the Voyager 2 flyby of Neptune in 1989 — NASA spacecraft introduced the world to close-up views of the bodies in our solar system.

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 ...

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 ...

Pluto imparted a slight but measurable alteration to the New Horizons spacecraft's trajectory (both bending and acceleration) during its 2015 flyby. The minimal nature of this trajectory change was ...