Copernicus: In ancient times, people thought that the earth was the center of the universe and the universe was limited because of their narrow vision. The sun, the moon and the stars all revolve around the earth. /kloc-in the 6th century, Copernicus, an outstanding astronomer in Poland, thought that the earth, like other planets, always revolved around the sun based on 30 years of astronomical observation and calculation. But at that time, the feudal church in Europe did not support this view. Whoever put forward this view would be persecuted by the church's court that tried pagans. Therefore, Copernicus did not publish his own works on the theory of the sun center until his death.

Bruno, an Italian scientist: He is an admirer of Copernicus and developed his theory. He pointed out that there are many galaxies similar to the solar system in the universe, and the sun is only the center of the solar system. Enthusiastic about spreading this new astronomical theory, he was pushed to the inquisition by the church to try heresy, and was burned alive after seven years in prison.

Galileo:/kloc-in the 0/7th century, the Italian astronomer Galileo strongly agreed with Copernicus's viewpoint, and he sought ways to give scientific confirmation to this viewpoint. But he was condemned by the church. The inquisition handed him over, interrogated him constantly, tortured him, and made him kneel down and swear to give up his views. But when Galileo stood up, he couldn't help mumbling, "But the earth is still turning!" " "Later, Galileo was imprisoned at home and was not allowed to go out.