Carbonaceous asteroids are a type of asteroid that contain a high percentage of carbon compounds. They are primarily found in the outer regions of the asteroid belt and are classified as C-type asteroids. These asteroids are believed to be some of the oldest objects in the solar system, providing valuable insights into its early formation. These asteroids often have a dark appearance due to their carbon-rich materials. They are thought to be the building blocks of planets and may contain organic molecules, which are essential for life. Studying carbonaceous asteroids can help scientists understand the origins of water and organic matter on Earth and other celestial bodies.