On January 5, 2005, astronomers at NASA discovered Eris, the second-largest dwarf planet in the solar system. Discover space history 👉 https://trib.al/ktlGexo Eris is just slightly smaller than Pluto, and it orbits the sun about three times farther than Pluto. NASA first thought that Eris was bigger than Pluto, and they originally described Eris as the 10th planet in the solar system. But the International Astronomical Union, or IAU, wasn't too thrilled about adding Ceres to the list of planets

Eris: Dwarf Planet King - Eris, the heavyweight champ of dwarf planets, holds the title of the most massive one in our solar system, despite being slightly smaller than Pluto. It's a frosty world residing way out past Neptune, in a chaotic region called the scattered disk. Eris travels on a long, oval-shaped path around the Sun, taking over 550 Earth years to complete one orbit. This mysterious world even has its own moon, Dysnomia, keeping it company in the deep freeze. | The Brain Maze

The Planet That Changed Everything: Eris 🌌 Eris — the dwarf planet that changed everything. 🪐 Discovered in 2005, this icy world beyond Pluto forced scientists to rethink what truly defines a planet. Named after the Greek goddess of discord, Eris lived up to her name — sparking one of the biggest debates in astronomy. Was Pluto really “demoted,” or did Eris just reveal how vast our universe truly is? Watch till the end — the truth might surprise you. 🚀 #ErisPlanet #SpaceFacts #Astronomy #Univ