Who is Galileo Galilei and what did he do?

Answer 1

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.

Answer 2

Galileo Galilei was an Italian astronomer, physicist, and mathematician known as the "father of observational astronomy" and the "father of modern physics." He made significant contributions to the fields of science by improving the telescope, supporting the heliocentric model of the solar system, and making important observations such as the phases of Venus and the moons of Jupiter. His work laid the foundations for the scientific revolution.

Answer 3

galileo is a scientist and he is famous because he invented the telescope!