2. Outline
• What did Galileo Galilei discover?
– What was the impact of his discovery?
• Where was he from ?
– Is he still alive?
• What challenges did he face?
• Challenges of today astronomers ?
• Pictures of Galileo Galilei and his
inventions
3. What did Galileo Galilei
discover?
He invented a special telescope that
was used to study craters on the
moon. He also discovered four
moons revolving around Jupiter.
Later these moons were named the
Galileo’ moons, after him.
4. Where was he from ?
Is he still alive?
• Galileo Galilei was from / born Pisa,
Italy.
• Galileo Galilei unfortunately died,
on the 8th January 1642.
• He was 52 when he died.
5. What challenges did he face?
Many people did not believe in his
findings so he had to be in house arrest
for the rest of his life.
Challenges of today astronomers ?
• Find other life in Universe.
• Figure out the “ Big Bang” theory.
• Investigate the dark black holes.
• Have enough money to do all of this.
