Question 3 -- / 10 neil degrasse tyson says that "there comes a time in our lives when we realized that we are not the center of the universe." when did scientists come to understand that the earth is not the center of the universe around which all of the stars and planets revolve? 15th century 16th century 3 17th century @ 18th century 19th century question 4 who had a radical proposal that the earth was not the center of the universe, but just one of the planets that revolve around the sun? 6 of 10 completed save for later submit