The International Astronomical Union’s Minor Planet Center, which catalogs new moons and other small bodies in the solar ...

The major planet roster has changed over the years, but Pluto is still beloved by the science community and regularly makes headlines. In July 2022, the National Aeronautics and Space ...

song, Interplanet Janet. Upon the discovery of its existence in 1930, Pluto enjoyed decades of special status as one of the solar system's planets. Then, in the summer of 2006, Pluto was demoted.

Pluto was once considered the ninth planet in the solar system. It was demoted in 2006. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Arizona Gov. Katie Hobbs signed a bill making Pluto the official state planet. It was discovered at an observatory in Arizona, but was downgraded to a dwarf planet in 2006. Arizona Governor Katie ...

Discovered in 1930, Pluto was the ninth planet for over 75 years, orbiting at the chilly fringes of our solar neighborhood. But then scientists at the International Astronomical Union decided ...

In 1930 a young astronomer from Kansas, employed as an observer at Lowell Observatory in Arizona, discovered Pluto. It was the first planet in the solar system to have been discovered since 1846 ...

The International Astronomical Union (IAU), the body that is responsible for naming and classifying objects in the cosmos, has just announced that Pluto has been reclassified as a major planet.

When the International Astronomical Union (IAU) demoted Pluto from a planet to a dwarf planet in 2006, it surprised a lot of people, including some scientists. Even many years later, some ...

Pluto was discovered at Lowell Observatory in Flagstaff, Arizona in 1930 and was considered our ninth planet until 2006. The International Astronomical Union reclassified Pluto as a dwarf planet ...

Before we get to the experts here’s how Dave described the discovery and death of Pluto as a planet in a December 2023 column: In 1930 a young astronomer from Kansas, employed as an observer at ...