The excerpt Crash Course (Nancy Honovich) describes what asteroids are and everything about them to how often they occur and how close they have to be to be too close for comfort. At the beginning of the story, it tells about what asteroids are and their history. They even said that a comet called the Shoemaker-Levy 9 sped towards Jupiter at sixty kilometers a second. That is really fast! It also told about how sixty-five million years ago, it is thought that one measly asteroid could have killed dinosaurs that inhabited the earth. During the middle of the story, it talks about how to express the difference between diverse varieties of rocks in space. Some rocks like comets, asteroids, and meteoroids. Today scientists are spot different
