Galileo reasoned that the phases of Venus could not be explained, if the Earth is in the center of the system of the planets. So Ptolemy's geocentric system could not be correct.
Edit: That's correct, but it doesn't answer the question, which is about Jupiter.
The idea is that Jupiter having moons proved that there are other places
that can be centres of motion, apart from Earth.
He made many experiments and observations in the field of physics in general.
No michealangelo is not galileo's brother
Vincenz lorreta jade
astronomy, maths and physics
to have supported the theroy of heliomentric
He made many experiments and observations in the field of physics in general.
Galileo's observations seemed to indicate that the heavenly bodies were composed of material substance just like Earth. Instead of pure orbs of light.
The telescope
ryan shuck
Which one are you referring to?
the funky worm
Found planets and satellites.
Figure it out for yourself!
Galileo Ross Galilei
virginia and livia
January 8, 1642. He was 77
what was galileos moms name