Which new idea did Copernicus introduce that significantly modified the geocentric model of the universe? (1 point)

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• The sun is at the center of the universe
• The motion of planets is not uniform and circular
• The universe includes objects we cannot see.
• Earth is at the center of the universe.

• The sun is at the center of the universe

• The sun is at the center of the universe

The new idea introduced by Copernicus that significantly modified the geocentric model of the universe is that "the sun is at the center of the universe." To arrive at this answer, you need to understand the advancements made by Copernicus and the changes he made to the prevailing geocentric model.

To find the answer, you can eliminate the options one by one:

- "Earth is at the center of the universe" is part of the geocentric model, so it does not modify the model.
- "The motion of planets is not uniform and circular" is a concept developed by Johannes Kepler and not by Copernicus.
- "The universe includes objects we cannot see" is related to the concept of dark matter, which is a more recent development in cosmology and not directly associated with Copernicus.

By elimination, the correct answer is "The sun is at the center of the universe," which is the main proposition of Copernicus's heliocentric model.