A spacecraft that made a historic flyby of Pluto in July has a new destination — an icy rock that may reveal what the outer solar system was like shortly after it formed 4.6 billion years ago. NASA's ...

Artist's concept of NASA's New Horizons probe zooming through the Pluto system in July 2015. A NASA spacecraft speeding toward Pluto is casting a wary eye on the dwarf planet system, looking for ...

The New Horizons spacecraft is just days away from a historic fly-by past Pluto after a journey of more than nine years into the solar system. Paul Chapman reports.

A U.S. spacecraft sailed past the tiny planet Pluto in the distant reaches of the solar system on Tuesday, capping a journey of 3 billion miles (4.88 billion km) that began nine and a half years ago.

NASA delays Wednesday's launch of its New Horizons spacecraft to Pluto after storm knocks out power at operating centre in Maryland. Probe will photograph, take measurements of last unexplored planet ...

NASA's New Horizons spacecraft may double its pleasure during its next deep-space flyby 16 months from now. On Jan. 1, 2019, New Horizons is scheduled to have a close encounter with a body called 2014 ...

The latest results from NASA's New Horizons probe have yielded a big surprise: Pluto may be a volcanic world. Scientists involved with the mission say that is the most plausible explanation for a ...

The New Horizons Pluto probe is now closer to Pluto than Earth, marking a significant milestone in its deep space mission. Distance in the graph is measured in Astronomical Units (a yardstick used by ...

With New Horizons' flyby of Pluto, spacecraft launched by humans have now visited the nine biggest planets (dwarf or otherwise) orbiting the sun. Publications such as the New York Times have called ...