Final answer:
Johannes Kepler used the knowledge of Galileo, Kepler, and Copernicus's physics to create a theory regarding the universe.
Step-by-step explanation:
The theory regarding the universe that used the knowledge of Galileo, Kepler, and Copernicus's physics was developed by Johannes Kepler. Kepler believed that the model of the universe that made the most sense mathematically was the true model. Using mathematics, Kepler discovered three laws of planetary motion and explained how the planets moved in the heliocentric model proposed by Copernicus. Galileo Galilei also supported the heliocentric model and made important observations and writings that convinced many of its validity.