Copernicus's model of the universe differs from ptolemy's because copernicus believed

That the Sun was the center of the universe.

Explanation:

Ptolemy believed in geocentrism, which means that the Earth is the center of the Universe. This was also supported by Aristotle. Copernicus on the other hand believed in a heliocentric system, which proposes that the sun is the center of the universe.

less than one you can't create energy

answer///terminator or twilight zone;