Here's a breakdown:
Rocky and Icy:
* Pluto: Primarily composed of rock and ice, with a thin atmosphere.
* Eris: Similar to Pluto, with a rocky core and a surface dominated by ice.
* Makemake: Thought to be a mixture of rock and ice, with a possible thin atmosphere.
* Haumea: Believed to be a rocky core covered in a layer of ice.
Other Compositions:
* Ceres: The largest dwarf planet, Ceres is believed to be primarily composed of rock and ice, but also has significant amounts of water ice and hydrated minerals. It's even thought to have a subsurface ocean.
* Vesta: A dwarf planet in the asteroid belt, Vesta is primarily composed of rock and has a very thin atmosphere.
Key Takeaways:
* While rock and ice are common constituents in dwarf planets, they aren't the only ones.
* The specific composition of each dwarf planet varies and depends on its formation and history.
* We continue to learn more about these fascinating objects, and their composition is still being studied.
