Description:
Sidereus Nuncius "Starry Messenge" is a short astronomical pamphlet published in New Latin by Galileo Galilei in 1610 .It was the first published scientific work based on observations made through a telescope
Description:
This is the image Galileo drew in his book Dialogo 1632 "Dialogue Concerning the Two Chief World Systems" to show the difference between the Copernican system, the Earth and other planets orbit the Sun