Simultaneously cooling Pluto while energizing atmospheric molecules to allow them to escape into space, Pluto's haze plays a key role in the planet's energy balance.

New data captured by the James Webb Space Telescope has finally given astronomers new clues about how Pluto cools itself.

Many people hold Pluto close in their hearts and refuse to abandon the assertion that it is a planet, although science ...

James Webb Space Telescope observations suggest Pluto’s atmosphere is unlike any other in the solar system, confirming a 2017 ...

The first observations of Pluto by NASA's James Webb Space Telescope (JWST) reveal dramatic phenomena on its surface, like ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor ... a donut-shaped section of space past the orbit of ...

Pluto has five moons—“fun-looking space potatoes,” Singer calls them—and its largest is a behemoth. Charon was discovered in 1978 when scientists noticed Pluto appeared to elongate every ...

Scientists have unlocked one of the solar system's many secrets from an unexpected source: a planetarium show.