The debate over Pluto’s planetary status has been ongoing since its reclassification as a “dwarf planet” in 2006 by the ...

Pluto’s heart-shaped feature, known as Tombaugh Regio, has captivated scientists and the public alike since its discovery.

Researchers propose an ammonia-water slurry as the basis for Pluto's newly discovered geologic activity and possible volcanism, and offer a new method to predict planetary vigor.

Named by a British school girl in 1930, Pluto now has 14 features that received an official name from the International Astronomical Union.

Astronomers using the James Webb Space Telescope have uncovered the nature of a strange, blue haze that dominates the climate of Pluto.

In Roman mythology, Pluto is the god and ruler of the dead. For a return mission to the dwarf planet, Howett and her ...

And because of Pluto's low gravity, the upper atmosphere extends quite a long way from the surface, by several Pluto radii (the radius of Pluto is 1,188.3 kilometers, or 737 miles).

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in our solar system.