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Whenever we look up at the night sky, there are countless planets twinkling. There are a small number of planets among them, as well as stars that shine particularly brightly. Since ancient times, human beings have had endless yearning and imagination for the universe. Compared with the vast universe, the earth where humans live seems so small. The size of the Sun is 1.3 Million times that of the Earth, and the size of UY Scutum, the largest star ever observed by humans, is 4 to 5 billion times that of the Sun. "Sending mayflies to heaven and earth is like a drop in the vast ocean. I mourn the brief moment of my life and envy the infinity of the Yangtze River." Su Shi's emotion in Red Cliff Fu seems even more embarrassing today. It is still unknown to humans whether there are intelligent life forms like humans in the universe. After all, in the vast universe, human beings are as insignificant as floating between heaven and earth. Perhaps the reason why humans have not found traces of other intelligent life is simply because the earth is in the most remote corner of the universe.