what is an airplane made out of and how do they put it all together from the fuselage to the electronics in the plane, Please with all the boring details.
Hence, prior to the invention of the telescope, nothing was known about the planet besides its position on the sky. The Italian scientist Galileo Galilei was the first person known to use a telescope to make astronomical observations. His records indicate that he began observing Mars through a telescope in September 1610.
Based on written records, the invention of the telescope is credited to Hans Lippershey of the Netherlands. Galileo is the first person to use a telescope to look at astronomical objects and record his observations. Galileo built about 30 telescopes but used only 10 to observe the sky.