1. Cosmologists, also known as astronauts, are pioneers of human beings entering space and an important role in exploring the universe.
2. Cosmic universe, that is, cosmic physics, is a branch of physics that studies the formation, evolution and interaction of matter, energy and force in the universe.
3. Cosmic medicine is a discipline that studies biomedicine and life sciences in the universe, mainly involving the influence of space environment on human beings and other creatures, and how to maintain health and safety in space exploration.
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