The mysterious stars Of the universe

We live in the universe, which makes people at all times and all over the world constantly think about the problem of the universe, such as the origin of the universe, does it have a origin? If so, how did it originate? For thousands of years, with the continuous progress of human beings, the means of observing the universe have developed from naked eyes to telescopes and artificial satellites, and the field of vision has expanded from the solar system to the galaxies and extragalactic systems. The understanding of the universe has gone through myths of the obscure period, speculation of ancient philosophers, scientific revolution since the Renaissance, and the birth of modern cosmology in the 20th century. Exploration and reflection never ceased.