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 ...

Of the five dwarf planets in the Solar System – including Eris, Ceres, Makemake, and Haumea – Pluto is easily the best-known due to its brief categorization as a regular planet.

He named it Ceres, after the ... Belt—objects such as Pluto and Eris—the International Astronomical Union in 2006 recommended that they be called "dwarf planets"—much as asteroids are ...

But the real nail in the planetary coffin came in 2005, when astronomer Mike Brown discovered Eris ... like Pluto or Ceres, ...

A blue atmosphere, smooth areas, and youthful mountain ranges - this dwarf planet is full of surprises. When NASA's New Horizons probe flew past Pluto in July 2015, the images it returned astonished ...

It saw the discovery of dwarf planet Eris and how those very observations led to a new way to describe the Solar System and heralded the eventual change of Pluto’s planetary status. On that ...

Ceres is the littlest planet that no one knows about ... It's a lot of objects like Eris, like Pluto, like these other dwarf planets that are all the leftover chunks from the early solar system.

They got kicked out soon, but then when we started being able to see asteroids, Ceres, Vesta ... And if you are still a Pluto-is-a-planet holdout, like we were, [Michael]’s argument that ...

Planitia structure on its surface. Ever since NASA's New Horizons sent back the first-ever photos of Pluto in 2015, the dwarf planet's mysterious heart-shaped region has puzzled scientists.

For one thing, Eris shares the region and isn't stuck in Pluto's orbit. The end result? Pluto is bumped from "planet" to "dwarf planet." Now, Stern argues that a dwarf planet is a kind of planet.

is a disc-shaped region beyond the orbit of Neptune’s in the outer solar system—50 Earth-sun distances—that’s home to dwarf planets like Pluto, Makemake and Eris. It’s also thought to be ...

In 2005, Eris was discovered. It was considered the largest known dwarf planet in the solar system until a year later when Pluto was downgraded from being a planet. In 2008, tribal violence ...