California Institute of Technology has graduate students majoring in astronomy. The language requirement of graduate students in this major requires IELTS score of 7.0, and correspondingly, TOEFL score is not less than 90. Just because Caltech has ESL courses doesn't mean it has to be double-enrolled. All non-English-speaking international students need to take the entrance English exam when they enter school, and the school will decide whether students need to take ESL courses according to the test results.

From 20 12 to 20 16, California Institute of Technology ranked second in the world in the Times Higher Education World University Rankings 1 and 20 19-20 for five consecutive years. 20 19-20 California institute of technology was rated as a world 12 university in the times higher education. In addition, on 20 19-20, California Institute of Technology ranked 5th in QS World University, 6th in USNews World University and 9th in the world soft science academic world. Its advantages include physics, chemistry, astronomy and space science of basic science. On 20 19-20, the world university ranked second in earth science, sixth in physics, fifth in chemistry and sixth in aerospace engineering, and assisted NASA in managing the famous jet propulsion laboratory. Qian Xuesen, the "father of China's space flight" and "father of Chinese missiles", graduated from California Institute of Technology in 1939 and has been teaching here for a long time. He also participated in the establishment of the Jet Propulsion Laboratory. CBS American drama The Big Bang Theory is also set in California Institute of Technology.