When I visited the American Museum of Natural History, I visited Rose Center for Earth and Space, Rose Center for Earth Environmental Sciences. What impressed me was the spectacular Hayden Sphere. There are many exhibitions, including exploring the evolution of the universe, its 13 billion-year history, galaxies, the nature of stars and planets, and the dynamics of the Earth. From this we can imagine the age of the earth. After the visit, I can't help feeling how important it is to protect the earth's environment.