Pluto may have been demoted to non-planet status, but it still commands a court of five moons, as is fitting for the king of ...

Earth has a newly-discovered neighbor in the solar system. But the heavenly body – possibly a dwarf planet à la Pluto – isn't a frequent visitor. Located beyond Neptune, its extreme orbit ...

Pluto has long been one of the most debated celestial bodies in our solar system. Once classified as the ninth planet, it was ...

Eight years after being reduced to a "dwarf planet" by the International Astronomical Union in 2006, our far distant cousin is finally getting some real push to be upgraded back to the ninth "planet" ...

Today, let's talk about Pluto and Charon; these two have quite the story! Did you know that their 10-hour "intimate encounter" has shaken the field of astronomy to its core?

A full view of Pluto's crescent, captured by NASA's New Horizons team on July 14, 2015, as the spacecraft looked back at Pluto toward the sun. (NASA) (CN) — The question of how Pluto captured its moon ...

Pluto and its moon Charon may have been briefly locked together in a cosmic “kiss”, before the dwarf planet released the smaller body and recaptured it in its orbit. Charon is the largest of Pluto’s ...

An amateur astronomer discovered Pluto 95 years ago today. The former planet will complete an orbit in another 153 years. On February 18, 1930, just two weeks after his 24th birthday, Clyde Tombaugh ...

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

For billions of years, Pluto and its largest moon Charon have been facing each other in a mutual tidal lock. Since it’s about half the size of Pluto, the moon and its planet are sometimes referred to ...