Astronomical ramble belongs to the public selected type of natural science. Astronomical ramble is a natural science general education course with the same name (public elective course of the whole school) opened by Huazhong University of Science and Technology in 2003. During the school's opening period, this public elective course was welcomed by students because of its wide knowledge, large amount of information and the combination of science and culture, and was praised by students as the favorite, most voluntary and most difficult public elective course of natural science.