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 New Horizons station is the first man-made object to reach Pluto. Till now, an incredibly distant and barely seen by telescopes ice dwarf remained an almost complete mystery to scientists. Let's ...

Using NASA New Horizons spacecraft data and digital elevation models of Pluto and its largest moon Charon, mission scientists ...

Pluto, with its heart-shaped glacier, as captured by the New Horizons spacecraftJPL/NASA Pluto will mark a birthday of sorts on March 23, 2178. No one is likely to be there to celebrate it ...

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short life of what was, for a single human lifetime, the solar system's smallest ...

A close-up view of Pluto’s Sputnik Planitia, captured by NASA's New Horizons spacecraft. | Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute With ...

However, some scientists argue that Pluto should be considered a planet based on geological activity rather than orbital mechanics. NASA’s New Horizons mission revealed ice mountains ...

NASA's New Horizons spacecraft conducted the first and only flyby of the Pluto system, culminating at the closest approach of that distant world in July 2015. Sailing onward, the probe carried out ...

NASA sent its probe New Horizons on a flyby in 2015. It confirmed the tiny planet harbored an ocean beneath its thick, icy shell. Pluto was always in a tough spot when it came to being a planet.

In 2006, after New Horizons was launched but before it could complete its nine-plus year journey, Pluto suffered the indignity of being demoted from planet to dwarf planet by the International ...