November 30, 1609 Nov 30 Written By BFACS Galileo Galilei first begins observing the moon with his telescope. He discovers that the surface of the moon is not smooth, as previously thought, but full of mountains and valleys, like Earth. BFACS
November 30, 1609 Nov 30 Written By BFACS Galileo Galilei first begins observing the moon with his telescope. He discovers that the surface of the moon is not smooth, as previously thought, but full of mountains and valleys, like Earth. BFACS
