Galileo's Observations (first telescopic observer)

Question 1

Galileo’s astronomical discoveries and their significance to cosmology

Answer 1

• First astronomy to use telescope to make astronomical observations.
• Discovered:
  - Milky Way is made of countless individual stars.
  - Presence of mountains and craters on the Moon
  - “Ears” on Saturn (Rings)
  - Spots on Sun
  - Jupiter’s four largest moons
• Proved the Heliocentric model true

Question 2

Galileo’s contributions to the scientific method

Answer 2

Galileo was used a telescope to make observations and prove theories using a scientific instrument, showing that even well-proven theories of many centuries can be disproven or changed.