Scientists investigate dwarf planet's ring

Discovered in 2004, Haumea is a dwarf planet located beyond Pluto's orbit in a region of the solar system called the Kuiper Belt. Pluto was demoted from the category of fully fledged planets in 2006 because of the discovery of Haumea and other dwarf planets.

source https://www.lifetechnology.com/blogs/life-technology-news-blog/scientists-investigate-dwarf-planets-ring