Galileo Galilei

Galileo Galilei was born in 1564 in Italy. As a young man, he originally studied medicine but soon discovered his true passion was mathematics and physics. He was very observant and liked to test ideas through experiments rather than just accepting what older philosophers said. Even though he faced financial difficulties, he became a brilliant professor. These early experiences helped him develop a new, practical way of doing science based on observation and mathematical proof.

In 1609, Galileo built a powerful telescope and pointed it at the sky. He made several groundbreaking discoveries, such as the craters on the Moon and the four largest moons of Jupiter. Most importantly, his observations supported the idea that the Earth and other planets revolve around the Sun. Before this, most people believed the Earth was the center of the universe. Because of his telescope, humanity began to understand the solar system much better. His work changed astronomy forever.

Galileo's ideas had a massive impact on the world, but they also brought him trouble. The Catholic Church disagreed with his teachings about the Sun and placed him under house arrest for the rest of his life. Despite this, his books and ideas spread across Europe. He is now known as the "father of modern science" because he proved that experiments are the best way to understand nature. His courage to stand by the truth continues to inspire scientists today.