Pluto
Latest about Pluto
Curious Kids: Why does it matter if Pluto is a planet or a dwarf planet?
By Samantha Lawler published
"Comet," "star" and "planet" are category names that immediately tell you something important about what they describe.
How Pluto walks a tightrope between a stable and chaotic orbit
By Keith Cooper published
Pluto is lucky to exist in the orbit that it does, according to new computer simulations that show how the dwarf planet skirts near a chaotic orbit that could potentially destroy the beloved world.
Ice volcanoes on Pluto may still be erupting
By Rebecca Sohn last updated
An area of Pluto that researchers think was formed from the eruption of ice volcanoes is unique on the dwarf planet and in the solar system, a new study suggests.
7 Wild Myths About Pluto
By Mike Wall last updated
A rundown of some of the most common misconceptions about the dwarf planet, which will be imaged in detail for the first time during the July 14 flyby of NASA's New Horizons spacecraft.
Pluto's bizarre polygons now have a science explanation
By Elizabeth Howell published
The icy process may be present on other worlds.
Pluto's atmosphere is starting to disappear, scientists find
By Chelsea Gohd published
Pluto's atmosphere is going through a strange transformation, scientists are finding.
Tantalizing Pluto views suggest active surface but won't be seen again for 161 years
By Meghan Bartels published
For a brief moment in time in July 2018, the solar system aligned to show Earth the fully sunlit disk of Pluto, an arrangement that won't occur again for 161 years.
Pluto's atmosphere gets its blue haze from icy organic compounds, study suggests
By Charles Q. Choi published
The haze shrouding Pluto might be made up of ice crystals possessing cyanide hearts, a new study finds.
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