Pluto

Using the James Webb Space Telescope, astronomers have discovered carbon dioxide and hydrogen peroxide at the surface of Pluto's largest moon, Charon, potentially shedding light on its origins.

Tombaugh Regio — the large, pale heart that dominates Pluto's terrain — is made of nitrogen ice that accumulated after a huge, slow-motion impact, new research suggests.

Kiladze Caldera, formerly called Kiladze crater, may be a supervolcano that erupted fairly recently, spewing ice across the surface of Pluto.

Astronomers will have to wait a while to celebrate the first complete orbit of Pluto since its discovery.

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.

Pluto's atmosphere is going through a strange transformation, scientists are finding.

A rare type of plutonium has been found in the crust below the deep sea, offering new clues as to how heavy metals form in star explosions and mergers.

Back in 2017, a point of strange light flashed through the solar system. Three years later, a new team of scientists claims to have figured out what it was.

The haze shrouding Pluto might be made up of ice crystals possessing cyanide hearts, a new study finds.

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.