Stunning new images of Pluto show towering mountain ranges made of ice, hinting that the dwarf planet may harbor geysers or ice volcanoes. The pictures were snapped by NASA's New Horizons ...

Being one-tenth as massive as Pluto, Charon orbits a point just outside Pluto’s surface, making Pluto-Charon the only known binary planet in our solar system.

The James Webb Space Telescope (JWST), operated by NASA, has uncovered intriguing new details about Charon—Pluto’s largest ...

PhD student Noah Hammond at Brown University says that data returned in 2015 by NASA's unmanned New Horizons deep-space probe indicates that Pluto may have a subsurface ocean similar to those ...

PLANET, dwarf planet or the little world that could? One thing’s for sure: it’s the Frankenstein’s monster of the outer solar system, because Pluto looks like bits of different worlds ...

Scientists expected Pluto's surface to be heavily marked with craters from billions of years of pummeling by space rocks. Instead the team discovered the dwarf planet's surface — or at least the ...

Despite Pluto's reclassification as a dwarf planet, it continues to fascinate researchers and space observers around the world. A few reasons include that its orbit is elliptical and has a 17 ...

Pluto was discovered in 1930 in Arizona, but in 2006 scientists decided to cut Pluto from the planetary line up. Here is why Pluto isn't a planet.

Pluto was the little planet that could — until it couldn’t. Discovered in 1930 at Lowell Observatory in Flagstaff, Arizona , Pluto was hailed as the ninth planet in our solar system.

Pluto's reign. For decades, students learned the phrase "My Very Educated Mother Just Served Us Nine Pizzas" to remember the order of the planets in the solar system: Mercury, Venus, Earth, Mars ...