This once-in-a-generation shift is a pivotal power play in a saga that will unfold in the years and decades to come.

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

While Charon is currently listed as a satellite or moon by the International Astronomical Union (IAU), consideration is being given to it perhaps being classified as a dwarf planet in its own right, ...

On Jan. 21, the sun will join forces with Pluto in Aquarius, stirring things up in a powerful way. Discover what this ...

he could not have known it was setting him forward on a path that would eventually lead to the discovery of the first known dwarf planet, Pluto. Let's take a look at the life of this amazing person.

Mercury will join forces with Pluto in Aquarius, stirring up deeply profound revelations and unveiling shocking truths.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. For decades ...

Pluto can be thought of as being part of a binary system with its biggest satellite, Charon (pictured). Scientists have long thought that this system formed as the result of a collision between ...

As the gatekeepers to the Kuiper Belt, Charon and Pluto are a unique double dwarf planet system. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Charon is half the size of Pluto, “making it the largest known moon relative to its parent planet in our solar system,” NASA notes. So how did Pluto get its chonky companion? A new study ...

Charon is large in size relative to Pluto, and is locked in a tight orbit with the dwarf planet. A new simulation suggests how it ended up there. By Jonathan O’Callaghan Some 4.5 billion years ...