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 ...

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

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

This icy world, temporarily named 2017 OF201, could be a distant cousin of Pluto — and scientists mean "distant" quite literally. At its farthest point, it's more than 1,600 tim ...

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.

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

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 ...

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 ...

It is located in the distant Kuiper Belt," the National Aeronautics and Space Administration said. Pluto was discovered in 1930 by American astronomer, Clyde Tombaugh, the Lowell Observatory said.

It had not been thought possible that such tiny, weak stars could provide the conditions needed to form and host huge planets.

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