eng Science and Education Publishing Frontiers of Astronomy, Astrophysics and Cosmology 2017-02-09 3 1 4 8 10.12691/faac-3-1-2 FAAC2017312 article Jian liang Yang bps267890@126.com 1 Physics Institute of Zhengzhou University, He Nan Zhengzhou, China In this paper, discusses the motion in a central gravitational field under considering space-time expansion, and realize the unification of structure of big scope space-time and physical phenomena of small scope, and set up a new mechanism of the formation and evolution of galaxies and celestial bodies, which is different from the mechanism given by big bang and is based on the continual generation of matter inside celestial bodies or galaxies. Point out that galaxies and celestial bodies are growing up in the course of spacetime's expansion. http://pubs.sciepub.com/faac/3/1/2/faac-3-1-2.pdf Newton's gravitational theory central field big bang convex lens effect continuous generation of matter