Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

A few decades ago, the Solar System had nine planets, but in 2006 the International Astronomical Union reclassified Pluto as ...

Planet X, also called Planet Nine, is a hypothetical planetary body seven times the mass of Earth lurking behind Pluto. If found, this gassy, icy beast some 155 billion miles away from the sun ...

In 1928, the amateur astronomer was offered a job at Lowell Observatory in Arizona, where he discovered Pluto. In 1934 ... the mysterious Planet X. Not long after its discovery in 1781, the ...

Nevertheless, because it orbited the Sun like a planet, it was classified as a planet and named Pluto, after the god of outer darkness in Roman mythology. So things stood for 65 years. Although ...

A new study suggests that the origin of Pluto's largest moon was quite different than our own. Here's what you need to know.

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

icy worlds like Pluto are. It was previously thought that Charon formed in the wake of a massive collision billions of years ago, much like how Earth's moon was born after our planet collided with ...

(CNN) — For decades, astronomers have tried to determine how Pluto acquired its unusually large moon Charon, which is about half the size of the dwarf planet. Now, new research suggests that ...