Pluto was identified in 1930, but by 1994, it was still little more than a blurry pixelated smudge on astronomers’ screens.

The strange blend of surface chemistry on Nix and Hydra raises big question about the evolution of the Pluto system.

Pluto is too far away from Earth to be seen with ... That was until NASA's 'New Horizons' probe arrived in 2015 and transformed our understanding of this distant, enigmatic body.

New Horizons rocketed past the Pluto system in 2015, which is now technically considered part of the Kuiper Belt. The mission collected data on the dwarf planet and its unique moon, Charon.

Planitia structure on its surface. Ever since NASA's New Horizons sent back the first-ever photos of Pluto in 2015, the dwarf planet's mysterious heart-shaped region has puzzled scientists.

This story appears in the July 2015 issue of National Geographic magazine. Small, cold, and absurdly far away, Pluto has always been selfish with its secrets. Since its discovery in 1930 ...

An curved arrow pointing right. NASA's New Horizons spacecraft took us to Pluto for the first time in July 2015. Scientists are astonished by the incredible features they've observed on the dwarf ...

I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. A century from now, NASA’s successful flyby of Pluto and its five known natural satellites will rank right up there with the ...

A blue atmosphere, smooth areas, and youthful mountain ranges - this dwarf planet is full of surprises. When NASA's New Horizons probe flew past Pluto in July 2015, the images it returned astonished ...

According to data gathered from the New Horizons spacecraft, scientists say that Pluto is likely to have water ice, geysers, and volcanoes. The ice mountains are 11,000 feet high, and the planet's ...

On July 14, 2015, the New Horizons spacecraft, one of the most advanced ever built, is scheduled to fly by Pluto to take the very first detailed images of the dwarf planet. After nine years and 3 ...