Aristarchus of Samos was the first person (that we know of!) that proposed a heliocentric model of the universe, as early as about 200B.C). His model was rejected mainly because of Aristotle's influence.
Copernicus was the next person to propose a heliocentric model of the universe which was published in 1547. although very controversial at that time, this model was the one that caught on.
that the world was heliocentric not geocentric aka sun centered universe and earth centered universe
Nicolas Copernicus
He was a Polish mathematician who disagreed with Ptolemy's view that the earth is the center of the universe. The heliocentric theory is the theory that the sun is the center of the universe, not the earth.
The Geocentric or Ptolemaic Model put the earth at the center of the Universe. The Heliocentric Model postulated by Copernicus and, before him, Aristarchus, places the Sun at the center of the Solar System. Galileo's observations proved the validity of the Heliocentric Model.
Copernicus
The geocentric universe was proposed by Ptolemy and focuses the Earth in the center of the universe. The heliocentric universe was proposed by Nicolas Copernicus and focuses the Sun as the center of the universe. However, both have been proved wrong.
that the world was heliocentric not geocentric aka sun centered universe and earth centered universe
Copernicus.
Nicolaus Copernicus was the scientist who wrote the book "De Revolutionibus Orbium Coelestium" (On the Revolutions of the Celestial Spheres) in 1543, in which he proposed the heliocentric model of the universe with the sun at the center.
Aristarchus of Samos
Yes, Voltaire supported the heliocentric view of the universe proposed by Copernicus. He wrote about it in his work "Elements of Newton's Philosophy" where he praised the advancements made by Copernicus, Galileo, and Newton in understanding the cosmos.
That would be Tycho Brahe who created the heliogeocentric model of the universe, which never became prominent at all.
Nicolaus Copernicus showed that our universe is heliocentric.
Claudius Ptolemy, an Egyptian astronomer, mathematician, and geographer, proposed the geocentric model around 140 B.C.The geocentric model states that the Earth exists at the center of the universe and everything else revolves around it. This was later shown incorrect by multiple other astronomers, such as Galileo, and proposed the more correct Heliocentric model.
Nicolaus Copernicus was the first astronomer to formulate a scientifically-based heliocentric cosmology that displaced the Earth from the center of the universe. So yes I guess you can say he was a scientist.
Geocentric understanding places the Earth at the center of the solar system or universe (depending on what is being discussed, and when) A Heliocentric understanding places the sun at the center of the solar system, or universe.
Copernicus (1473-1543) founder of modern astronomy.