Copernicus developed an interim theory of the planets in which the Sun was at the centre instead of the Earth as had previously been believed. Although Copernicus's theory only lasted from 1543 to 1609 when Kepler's theory replaced it, it is regarded as a useful step along the way.
Galileo Galilei was the Italian astronomer who supported Copernicus's theories by using his own observations through a telescope to provide evidence for the heliocentric model of the solar system.
Nicolaus Copernicus was a Polish mathematician and astronomer known for his heliocentric model of the universe. In addition to his work in astronomy, he also held positions as a physician, translator, and diplomat during his lifetime.
Copernicus proposed an idea that was never believed at his time . Aristotle and the Church had taught other people about the geocentric theory, but using observations and math, his heliocentric theory shows that the planets orbit the sun and not the earth.
Nicolaus Copernicus is best known for proposing the heliocentric model of the solar system, which placed the Sun at the center rather than the Earth, fundamentally altering our understanding of the universe. In contrast, Galileo Galilei built upon Copernicus's ideas by using the telescope to provide empirical evidence supporting the heliocentric model, such as observing the phases of Venus and the moons of Jupiter. While Copernicus's contributions were primarily theoretical, Galileo's work emphasized observation and experimentation, marking a significant shift towards the scientific method. Together, their contributions laid the groundwork for modern astronomy and challenged the geocentric views of the time.
I suspect the answer you're looking for is Galileo Galilei. It just has two problems: Galileo didn't "invent the telescope", nor did he "develop a heliocentric view of the universe." The telescope was invented in the Netherlands; Galileo simply improved on it and was probably the first to apply it to astronomical observations instead of just looking for distant ships. Also, Copernicus is (properly) credited with the heliocentric view; Galileo's observations supported this, but he didn't come up with it.
Galileo Galilei was the Italian astronomer who supported Copernicus's theories by using his own observations through a telescope to provide evidence for the heliocentric model of the solar system.
Galileo Galilei was the astronomer who first viewed the moons of Jupiter. He observed them in 1610 using a telescope he had made himself. His discovery provided evidence supporting the heliocentric model proposed by Copernicus.
Nicolaus Copernicus was a Polish mathematician and astronomer known for his heliocentric model of the universe. In addition to his work in astronomy, he also held positions as a physician, translator, and diplomat during his lifetime.
The popular answer to this question would be Galileo. However, contrary to popular belief Galileo did not invent the telescope. He built his own telescope about a year after their initial creation and later made significant improvements.
Galileo Galilei, an Italian astronomer, physicist, and engineer, provided evidence supporting the idea that the Earth moves around the Sun through his observations using a telescope in the early 17th century. This contradicted the prevailing geocentric model, ultimately leading to his support of the heliocentric model proposed by Copernicus.
Kepler completely replaced Copernicus's theory of the orbits of the planets, which was based on circles an epicycles, with a new theory using elliptical orbits. However Kepler retained Copernicus's idea of placing the Sun at the centre.
Aristarchus of Samos was one of the first Greek astronomers to propose a heliocentric model of the solar system, with the Sun at the center instead of the Earth. He also accurately estimated the sizes of the Sun, Earth, and Moon, and calculated the distance to the Moon using lunar eclipses. His work laid the foundation for later astronomers, such as Copernicus, who expanded on the heliocentric model.
Kepler completely replaced Copernicus's theory of the orbits of the planets, which was based on circles an epicycles, with a new theory using elliptical orbits. However Kepler retained Copernicus's idea of placing the Sun at the centre.
Copernicus proposed an idea that was never believed at his time . Aristotle and the Church had taught other people about the geocentric theory, but using observations and math, his heliocentric theory shows that the planets orbit the sun and not the earth.
Kepler completely replaced Copernicus's theory of the orbits of the planets, which was based on circles an epicycles, with a new theory using elliptical orbits. However Kepler retained Copernicus's idea of placing the Sun at the centre.
The astronomer studied distant galaxies using a powerful telescope.
Nicolaus Copernicus is best known for proposing the heliocentric model of the solar system, which placed the Sun at the center rather than the Earth, fundamentally altering our understanding of the universe. In contrast, Galileo Galilei built upon Copernicus's ideas by using the telescope to provide empirical evidence supporting the heliocentric model, such as observing the phases of Venus and the moons of Jupiter. While Copernicus's contributions were primarily theoretical, Galileo's work emphasized observation and experimentation, marking a significant shift towards the scientific method. Together, their contributions laid the groundwork for modern astronomy and challenged the geocentric views of the time.