The current model of our solar system is called the heliocentric model, which means the sun is at the center. before scientists developed the current model, which is the best supported by the evidence, what was believed to be the center of our solar system?
a. the solar system had no center because all the planets' orbits were random
b. a star other than the sun was the center of the solar system
c. a black hole was the center of the solar system
d. earth was the center of the solar system