University of Colorado at Boulder is the flagship of Colorado's higher education system, especially in science and engineering. Its scientific research level is in the top 20 in the world, and its professional strength is superior in physics, chemistry, biomedicine, geography and environmental science, among which optics, atomic physics and other majors rank first in the United States all the year round; In terms of engineering, the School of Aerospace Engineering and Science enjoys a high reputation in the United States, and 20 astronauts have been born. According to statistics, all satellites in active service in the United States have instruments and equipment designed and manufactured by the University of Colorado at Boulder. The school's engineering majors such as chemical engineering, civil engineering, machinery and computer are also excellent. Leeds Business School has experienced rapid development and has become one of the most famous business schools in the United States. Since 1876 was founded, 12 alumni have won the Nobel Prize, 9 alumni have won the MacArthur Award, 2 alumni have won the Pulitzer Prize, 1 alumni have won the Turing Award, and 1 alumni have won the Lasker Medical Research Award.