Question

the model of the universe that suggests that the sun is the center of the universe was first developed by
a) kepler.

b) brahe.

c) ptolemy.

d) copernicus.

Explanation:

The heliocentric model (sun - centered universe) was first developed by Copernicus. Kepler worked on laws of planetary motion, Brahe made astronomical observations, and Ptolemy proposed a geocentric (Earth - centered) model.

Answer:

D) Copernicus.