New Horizons had been instructed to spend the day gathering the maximum amount of data, and not communicating with Earth until it was beyond the Pluto system.

New Horizons has been carrying science instruments on its 3 billion mile, nine-and-a-half year journey to Pluto, and an ounce of the astronomer's ashes have also been along for the ride.

Although the spacecraft officially made its flyby at 7:49 a.m. Eastern Daylight Time, NASA already has leaked early findings about the planet related to new data gathered by New Horizons.

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 ...

CAPE CANAVERAL, Fla. (AP) — 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 ...

CAPE CANAVERAL, Fla. (AP) — Little Pluto is a little bigger than anyone imagined. On the eve of NASA’s historic flyby of Pluto, scientists announced Monday the New Horizons spacecraft has ...

Euphoria broke out at NASA as space probe New Horizons sent back a signal Tuesday, confirming a successful Pluto flyby.

A conceptual mission known as "Persephone" could explore Pluto and its moons for 50 years — if it ever gets funded and approved.

Key Takeaways: NASA’s New Horizons was the first spacecraft to pass by Pluto. It also explored several other “space objects.” Take a look at some of our favorite tech stocks in “The Next ...

NASA's New Horizons Pluto probe is gearing up to cross the "termination shock," an exotic boundary in the outer solar system, as early as 2027.

The space probe began making discoveries even before today's flyby. — -- Three billion miles and nearly ten years of travel led up to the moment NASA's New Horizons probe zoomed past Pluto ...

New Horizons has covered about one-third of the distance from Pluto to its next flyby target, which is now about 600 million miles (nearly 1 billion kilometers) ahead.