Pluto
Latest about Pluto
Pluto's wispy atmosphere may be surprisingly robust
By Mike Wall published
Pluto's thin, blue-tinged air may not collapse when the dwarf planet is far from the sun.
Meet the unknown female mathematician whose calculations helped discover Pluto
By Meghan Bartels published
Pluto's discovery wouldn't have been possible, astronomers have realized, without the calculations of a mathematician whom history has forgotten.
Pluto's famous heart powers icy winds on the dwarf planet
By Mike Wall published
Pluto's heart-shaped feature, which NASA's New Horizons spacecraft discovered during its epic July 2015 flyby of Pluto, drives atmospheric circulation on the dwarf planet, a new study suggests.
Pluto and Titan are surprisingly hazy, but scientists are fuzzy on exactly why
By Meghan Bartels published
NASA's New Horizons mission turned Pluto from a fuzzy blob into a detailed, geophysically complex world. But it's still a little fuzzy, as it turns out.
NASA Chief Keeps Saying 'Pluto Is a Planet' Because It's a Complex, Amazing World
By Elizabeth Howell published
The long-standing debate over Pluto's planethood recently got a public boost from NASA Administrator Jim Bridenstine, who said the world should definitely be a planet.
NASA Eyes a Possible Return to Pluto, with a Longer Stay
By Mike Wall published
NASA is thinking about going back to Pluto, this time to stay for a while.
Pluto Still Deserves to Be a Planet, NASA Chief Says
By Passant Rabie published
Pluto lost its "official" planet status over a decade ago, but fans of the solar system's underdog are still rooting for it. And NASA Administrator Jim Bridenstine is one of them.
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