One of the latest mysteries captivating scientists and space enthusiasts alike is the potential discovery of a ninth planet beyond Pluto. Although Pluto was demoted to the status of a dwarf planet ...

We bring up this history because it is directly related to the story of Pluto. In 1846, Neptune, the fourth of the giant planets beyond the asteroid belt, was discovered—thirty times farther ...

SEE ALSO: 4 rad dwarf planets that aren't Pluto "The icy worlds beyond Neptune trace how the giant planets formed and then moved out from the sun," Michele Bannister, one of the researchers who ...

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

Gonggong is a dwarf planet and a member of the scattered disc beyond Neptune. As of 2019, its distance from the Sun is 88 AU, and it is the sixth-farthest known Solar System object.

However, nearly 100 years later, the facility is best known as the home of Pluto. Lowell was searching for "Planet X," believed to be hiding on the solar system's outskirts beyond Neptune in an ...