When NASA's New Horizons spacecraft sped by Pluto in 2015, it revealed an incredible world of ice and haze carved by various geological processes — hinting that an ocean may have played a role in the ...

Decades-old pictures of Pluto’s heart are breaking the Internet again. University of Oxford's Dr Carly Howett explains the science behind the New Horizons mission and that famous 5-billion-kilometre ...

The heart's brightness arises from sunlight reflection, while red patches, formed by tholins, showcase Pluto's atmospheric ...

The discovery of another moon around Pluto is exciting news for planetary science, but it's also likely causing some anxiety for the team in charge of New Horizons, a spacecraft set to be the first ...

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 ...

Pluto’s thin, blue haze glows in this image from NASA’s New Horizons spacecraft. Though the dwarf planet is just a faint speck through a telescope, opposition this month offers skywatchers their best ...

The New Horizons spacecraft sends back its sensational snapshots of Jupiter, and its volcanic moon Io, before the mission's close encounter with Pluto (Photo by: Photo12/Universal Images Group via ...