What did galelio discover?

Answer 1

Galileo Galilei (15 February 1564- 8 January 1642) was an Italian physicist, mathematician, astronomer, and philosopher who played a major role in the Scientific Revolution. He championed Copernicus' heliocentric ideas and contributed to observational astronomy including:-

• the telescopic confirmation of the phases of Venus
• the discovery of the four largest satellites of Jupiter (named the Galilean moons in his honor)
• the observation and analysis of sunspots.

Galileo also worked in applied science and technology, inventing an improved military compass and other instruments.

Answer 2

Moons! Mind blowing stuff back then.

Answer 3

That the church was lying

Answer 4

Telescope