Cosmology is a branch of astrophysics that studies the creation, evolution and end of the universe as a whole. In English, cosmology comes from cosmos, that is, universe, order and harmony. It implies human's beautiful yearning for the universe, that is, the beauty of harmonious and beautiful universe, and the ultimate beauty of space-time.

In the past ten years, cosmology courses have been offered in the departments of physics and astronomy in University in the world, but most of them are for graduate students, some courses are only for senior undergraduates.

However, there are few cosmology courses for undergraduates alone, the main reason is that undergraduates do not study general relativity, which is also the watershed of undergraduate and graduate cosmology.

If the undergraduate students in the Department of astronomy and physics do not take a cosmology course, their knowledge structure of astronomy and physics will not be complete, and it is not conducive to their subsequent postgraduate study.

This course “Introduction to Cosmology” is a basic course for undergraduates in astronomy and physics. This course is based on the teaching principle of "doing something or not doing something". It teaches the most basic contents of standard (or big bang) cosmology, or zero order (or smooth) cosmology. Therefore, undergraduates can learn it without the basis of general relativity.

Course content: Introduction-Overview; Hot Big Bang cosmology; Newtonian Cosmology; The basis of Standard Cosmology (SC); Inflation; The Cosmic Microwave Background Radiation (CMBR); Cosmic Neutrino; The Early Universe; The Initial Singularity and creation of The Universe

Teaching method: online.

Learning style: Research based learning and autonomy; Combination of exploratory learning.

Features of this course: English teaching materials and handouts; Teaching contents and methods are closely linked with international teaching and research frontiers; Undergraduate students can spend the shortest time to understand the frontier of research and quickly enter the state of scientific research; In the course, the students' independent learning, student interaction and teacher-student interaction are emphasized to stimulate the undergraduates to generate scientific ideas and cultivate their scientific research savvy and innovation ability.

Teaching objectives: After learning this course, students can use the existing mathematical knowledge to deduce the whole evolution process of the universe and master the skills of reading cosmological literature. Arouse students' yearning for deep understanding and research of our universe. Enable students to have a deep understanding of mathematics, physics and the harmonious beauty of the universe, and cultivate students' correct world and cosmos view.