A orbited the Sun but not the Earth.

A legend says that Galileo climbed to the top of the
Leaning tower of Pisa, and dropped two cannon balls of different weights to the
ground. He wanted to prove that Aristotle’s theory was wrong. Aristotle
believed heavier objects fall faster than light ones. According to this legend.
Galileo proved him wrong. He found out that objects fall at the same rate
unless wind resistance slows one down. Most people ignored his findings, and
Aristotle’s view was still accepted. Isaac Newton later proved that Galileo was
right all along. This help Isaac Newton to create the Law of Gravity.

Physics

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Many people believe that Galileo Galilei was the first
person to build a telescope, but this is not true. He is the first person to
record his observations through a telescope. When Galileo read that Aristotle,
a famous Greek philosopher, thought the Earth was at the center of our solar
system, and all the planets revolved around us. Galileo thought to consider
this topic deeper. Galileo agreed with Nicholas Copernicus, a Polish
astronomer. Galileo, through his telescope found out that the planets orbited
the Sun but not the Earth. When Galileo Galilei took his discovery to the
Catholic Church, he was criticized on his findings. The Church taught that the
Earth stood still and every other planet revolved around it. The Church
supported Aristotle’s false discovery. The Inquisition ruled in 1616 that other
theories could only be discussed as possibilities, but not as certain facts.
Galileo obeyed. Galileo later discussed his findings in one of his most famous
books. The book was in the form of three people having a conversation. One was
from the Catholic Church’s point of view. Church leaders on reading this book
were mad with Galileo. The Inquisition acted against him in 1633. Galileo was
arrested and put under trial. They found him a suspect of heresy. The church
reminded Galileo of the fate of Giordano Bruno, who was burnt at stake. He too
believed that the planets orbited the Sun. The inquisition forced Galileo to
accept he was wrong. Galileo was then put under house arrest for the rest of
his life.

Astronomy

Galileo Galilei was born on 15 February 1564. He was
an Italian Polymath, known for his work in astronomy, physics, engineering,
mathematics, and philosophy. Today, Galileo Galilei is best known for his
conflict with the Catholic Church.