Which development was the first major change to ancient models of the solar system?(1 point)

the choice to place stars far from Earth

the choice to make elliptical rather than circular orbits

the placement of the Sun at the center of the solar system

the placement of some planets closer to the center of the solar system

The placement of the Sun at the center of the solar system was the first major change to ancient models of the solar system.

Which objects would never be found inside the solar system?(1 point)

comets

planets that orbit the sun

stars that form constellations

the moon

Stars that form constellations would never be found inside the solar system.

The first major change to ancient models of the solar system was the placement of the Sun at the center of the solar system. This model, known as the heliocentric model, replaced the ancient geocentric model, which placed Earth at the center.

To arrive at this answer, one can use historical knowledge about the development of astronomical models. The ancient Greeks, such as Aristotle and Ptolemy, believed in a geocentric model, where Earth was the center of the universe, and the Sun, stars, and planets revolved around it. However, in the 16th century, the Polish astronomer Nicolaus Copernicus proposed a heliocentric model, where the Sun, rather than Earth, was at the center of the solar system.

This shift in the European Renaissance astronomy was a groundbreaking change that challenged the traditional understanding of the cosmos. Copernicus' idea was further supported and refined by other scientists such as Johannes Kepler and Galileo Galilei, leading to the eventual acceptance of the heliocentric model as the dominant model of the solar system.