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 was the first to discover telescope supported heliocentric.
Galieo was the first astronomer to view Jupiter's moons through a telescope and proved the heliocentric model.
Mikołaj Kopernik
As proposed by the Heliocentric Theory, the Sun is the center of the Solar System.
The earliest known proposal that the Sun was at the center of our solar system while the planets moved around it was by Aristarchus of Samos, a Greek mathematician and astronomer who lived in the 3rd century BC. (Others may have proposed it earlier, but no reference to them remains after 2400 years.) However, the views of Aristotle proved easier to accept. It wasn't until Copernicus developed the same theory (probably independently) based on more accurate and complete observational data that the heliocentric view of the solar system was widely accepted.
Yes, there are lots of mountains on the moon, as proved by Italian professor of Mathematics, Galileo. The proved this by making the first 20x zoom telescope and noticing mounting-looking hills, later realizing they were in fact mountains, measuring about 2.5 miles high. To compare, Mount Everest is 3 miles high.
Galieo was the first astronomer to view Jupiter's moons through a telescope and proved the heliocentric model.
Galileo Galilei was a physicist and an astronomer. He proved hat the heliocentric universe was correct, not the geocentric universe, with his telescope that he invented. Galileo also found out that other planets have moons too. And finally, he proved Aristotle wrong by finding that objects fall at the same speed, no matter what their weight is.
In the Dark Age of Science, it was believed that Earth was in the center of Solar System and all the planets including sun, revolve round the sun. This is called Geocentric Theory.Nicolas Copernicus, A Polish*Astronomer, proved that earth and other planets revolved round the sun. This is Heliocentric Theory.(Copernicus proposed the Heliocentric Theory in 1543, 64 years before the invention of telescope. I was all the work of his Mathematics.)_________________________________________________________________* Polish Astronomer is an Astronomer from Poland
Copernicus, with the use of the heliocentric theory and Galileo with his telescope proved the planets revolve around the Sun.
Galileo proposed the heliocentric theory that the Earth goes around the sun.Which can be proved by any aware person with a telescope.
He made many experiments and observations in the field of physics in general.
it wasn't
In 1610, Galileo used the telescope to discover four moons revolving around Jupiter.The motion of these moons proved that not everything in the sky revolves around Earth.Galileo's observation of Venus also supported the heliocentric system. Galileo knew that Venus is always seen near the sun. He discovered that Venus goes through a series of phases similar to those of Earth's moon.
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Mikołaj Kopernik