It's far out, man – literally. Researchers have uncovered the most-distant celestial object in the solar system, a pink dwarf planet nicknamed "Farout," detect at a distance of more than 100 times ...

Swipe Down for Full Video Story Most of us learned that the Solar System has eight planets. For many years, Pluto made it ...

There are officially eight planets in our Solar System — yes, I know, Pluto was totally a planet, but not anymore — but that doesn't mean there isn't something lurking on the edge of our system that ...

Add Yahoo as a preferred source to see more of our stories on Google. Just because Pluto was ruled out as a planet in 2006 doesn’t mean our solar system only has eight planets. The search for Planet ...

Astronomers have discovered an object, dubbed “the Goblin,” in the outer reaches of the Solar System. The dwarf planet never gets any closer to the Sun than 6 billion miles, but experts say its ...

Way past Pluto, the suspected Planet X creeps around the outer edges of our solar system. Nobody is sure whether this rumored ninth planet really exists, but astronomers have been hard at work ...

A rare interstellar visitor known as comet 3I Atlas is currently drifting through our Solar System. At first glance, it might ...

Just months after discovering FarOut, the most distant known object in the Solar System, the same team of astronomers has detected the faint—but not yet confirmed—glimmerings of an object even farther ...

The solar system’s retinue of known, faraway worlds has gained another member: a small, icy body that takes 40,000 years to plod once around the sun, traveling farther away from our home star than all ...