What scientist reaffirmed the elliptical, heliocentric planetary orbits, as theorized by Copernicus
Nicolaus Copernicus (1473-1543) developed a heliocentric model of the universe and in the process initiated the Scientific Revolution. In his model, Copernicus maintained that Earth was not the center of the universe. Instead, Copernicus believed that Earth and the other planets revolved around the Sun. Copernicus (1473-1543) was not the first person to claim that the Earth rotates around the Sun. In Western civilization, ancient Greek astronomer Aristarchus of Samos is generally credited with being the first person to propose a Sun-centred astronomical hypothesis of the universe (heliocentric). Heliocentrism, or heliocentricism, is the astronomical model in which the Earth and planets revolve around the Sun at the center of the Solar System. The Revolutionary Ideas of Copernicus. Nicolaus Copernicus (1473-1543) developed a heliocentric model of the universe and in the process initiated the Scientific Revolution. In his model, Copernicus maintained that Earth was not the center of the universe. The heliocentric model is a theory that places the Sun as the center of the universe, and the planets orbiting around it. The heliocentric model replaced geocentrism, which is the belief that the Earth is the center of the universe. Galileo is considered the first astronomer to use the telescope. He discovered four of Jupiter's satellites and the craters on Earth's moon. The telescope also allowed Galileo to verify Copernicus's theory that the planets circle the Sun (the heliocentric theory), and not Earth (the Ptolemaic theory). He discovered four of Jupiter's satellites and the craters on Earth's moon. The telescope also allowed Galileo to verify Copernicus's theory that the planets circle the Sun (the heliocentric theory), and not Earth (the Ptolemaic theory). Copernicus published his theory in his book On the Revolutions of the Heavenly Bodies. Copernicus placed the Earth as the third planet from the Sun, and in his model, the Moon orbits the Earth not the Sun. Known for: Heliocentric model of the universe. Renaissance astronomer who theorized that the sun was the center of the universe rather than the earth. He also stated that the moon revolved around the earth’s orbit rather than the sun’s. Copernicus' heliocentric system placed the Sun immobile at the center of the other planets-in the [correct] order Mercury, Venus, Earth, Mars, Jupiter, Saturn.
Nicolaus Copernicus