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Galileo The courageous astronomer

In the seventeenth century, a man turned his telescope towards the Moon. He hoped to see a smooth, white ball. Imagine his surprise, when he discovered that the moon had a rough surface covered with craters. This man was Galileo Galileo, an Italian astronomer. He built a telescope all by himself to watch the celestial bodies. Apart from observing the Moon, he also discovered the four moons of Jupiter namely Io, Europa, Ganymede & Callisto. These moons are called the Galilean moons in his honor. Galileo also discovered many stars, which were invisible to the naked eye. By the movement of the sunspots he concluded that the sun rotates on its axis. But Galileo was highly criticized when he published this discovery in a book. Dialogue Concerning the Two Chief World Systems. The Church believed that the sun was stationary. In those days anyone who went against the Church was punished severely. Galileo was forced to apologize for his beliefs. But in his heart he always knew that he was right. Later, scientists did succeed in proving that the sun rotates on its axis. Then the church had to apologize for its treatment of Galileo. In 1989, National Aeronautics and Space Administration NASA released a spacecraft into the space to study the planet Jupiter. It was named Galileo to honour the work of the great astronomer.

Web references :

Edwin Aldrin

Space

Evening And Morning Star

History Guide

Venus

Space

Jupiter