E-type asteroid

An e-type asteroid is like a space rock that's really, really old. It's been flying around in space for billions of years! These asteroids are made up of minerals like olivine and pyroxene, which are really important for scientists because they can tell us a lot about the history of the asteroid and the early solar system. Some e-type asteroids are also kind of weird because they spin around really fast and have a lumpy shape, kind of like a potato. So basically, e-type asteroids are cool space rocks that are old and have important information about the universe.