Answer:
b) moons around the planet Jupiter
Step-by-step explanation:
- Galileo was the first astronomer to use the telescope to study the heavens and his observations made him conclude that earth was not at the centre of the universe and proved the Ptolemaic calculation of the earth at the centre of the universe wrong.
- His discovery of the moon creators and the solar storms and the moons spinning around the Jupiter which did not go around the earth.