Galileo Galilei

Fact's

Galileo Galilei was a great mathematician. Galileo made the first ever telescope in 1609. The next year Galileo Galilei discovered the four largest moons orbiting around Jupiter. Galileo Galilei was born in Italy, on the 15th of February 1564 he died on the 8th of January 1642.
Dates/of discoveries ?

galileo's Astronomical discoveries

1615

Galileo's 400th anniversary in 2009

Technologies used of the time ?

They used the Telescoped for information about space

What contribution did they make to our knowledge and understanding of the solar system ?

With the telescope it aloud astronomers to explore and discover more about space

What was the discovery/ ies

That they could but a foating object in space with out catching on fire when it get close