Denton explained, “Pluto and Charon are smaller, colder, and primarily made of rock and ice. When we accounted for their material strength, we discovered something completely unexpected.” ...

Scientists have discovered a new type of planetary collision called “kiss-and-capture,” where Pluto and proto-Charon briefly ...

Pluto likely acquired large moon Charon in a “kiss and capture” collision billions of years ago. It may have created a subsurface ocean on the icy dwarf planet.

In 1928, the amateur astronomer was offered a job at Lowell Observatory in Arizona, where he discovered Pluto. In 1934, he married Patricia Edson. They had two children, Annette and Alden.

During their excavation of the site in 2013, archaeologists reported witnessing several birds dropping dead after flying too ...

University of Arizona researchers have unveiled evidence of romance at the farthest reaches of the solar system: a cosmic ...

"Pluto and Charon are different—they're smaller, colder and made primarily of rock and ice. When we accounted for the actual strength of these materials, we discovered something completely ...

What’s unique about the separation is that Pluto and Charon still share the same orbit. This new discovery is helping researchers better understand how planets form and evolve, especially icy worlds.

FLAGSTAFF, ARIZ.? It’s been 75 years since the discovery of Pluto, but it remains a mystery. Pluto was quickly heralded as the ninth planet in the solar system when it was spotted Feb. 18 ...

It was not until 1994 that the Hubble Space Telescope produced the first image of both Pluto and Charon with clear space between them. Christy's discovery was important because the existence of ...