What is Galileo famous?

Related questions

1. Was Galileo imprisoned?
2. What is the name of India's GPS system?
3. How many types of GPS are there?
4. Is there anything inside a black hole?
5. Was Galileo's family rich?
6. How many GPS satellites are visible at once?
7. Who killed Galileo Galilei?
8. What Glonass means?
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Tags

1. #ganymede
2. #famed
3. #called
4. #discoveries
5. #moons
6. #1990s
7. #known
8. #massive
9. #discovery
10. #callisto
11. #telescope
12. #galilean
13. #galileo
14. #perhaps
15. #jupiter
16. #europa
17. #honor
18. #mission
19. #astronomer