Astronomical Discoveries

  • Proved the Moon wasn't a perfect sphere (saw mountains/craters)
  • Built a telescope to help with observations
  • Discovered there could be centers of motion that are also in motion
    • Proof that the Moon could keep up with it even if it was in motion
    • Found four moons revolving around Jupiter
    • Saw Venus go through phases just like the Moon so it must revolve around the Sun too

Space Astronomy