The Graduate School of Science offers 2-year Master's degree and 3-year Doctoral programs. The school, consisting of mathematics, physics, chemistry, biology, and earth and planetary sciences departments, currently has 240 students studying for the master's degree, and 90 students studying for the doctoral degree. After completing the Master's Degree Program, many of the students go on to work for private companies as well as public sectors, utilizing their highly advanced knowledge in one of the natural science fields. The doctoral program aims at training future researchers who will work at universities, or research institutes. The students are encouraged to contribute to the development of natural sciences as well as to master the fundamentals of research. After completing the Doctoral program, students are granted the Doctor of Science, or the Doctor of Philosophy.