Which idea of the geocentric model of the solar system was most contested by some philosophers?(1 point)

The universe was the only object they could see.
The universe was the only object they could see.

Earth was the center of the universe.
Earth was the center of the universe.

Earth was not moving.
Earth was not moving.

The motion of the planets was uniform and circular.

The idea of the geocentric model of the solar system that was most contested by some philosophers was that Earth was the center of the universe. To understand why this idea was contested, we need to delve into the history of the geocentric model.

The geocentric model proposed that Earth was stationary at the center of the universe, and all celestial objects, including the Sun, Moon, planets, and stars, revolved around it in perfect circular orbits. This model was widely accepted for centuries in ancient civilizations like Greece and Rome.

However, as scientific observations and knowledge progressed over time, astronomers began to question the validity of the geocentric model. In particular, the Greek philosopher and mathematician Nicolaus Copernicus proposed a heliocentric model, in which the Sun was at the center of the solar system.

One of the reasons why philosophers contested the idea that Earth was the center of the universe was due to the apparent motion of the planets. The geocentric model required complicated explanations, such as epicycles, to account for the irregular paths that planets like Mars or Jupiter seemed to follow in the night sky. This led to a certain level of dissatisfaction and doubt among philosophers.

Ultimately, it was the advancements in observational tools, like the invention of the telescope, that provided evidence against the geocentric model. Through telescopic observations, astronomers such as Galileo Galilei discovered that Jupiter had its own moons, which revolved around it, undermining the geocentric idea that all celestial bodies circled around Earth.

In conclusion, the idea that Earth was the center of the universe was most contested by some philosophers. They challenged this concept because it required complex explanations for the motion of the planets and was gradually disproven by advancements in observational technology.