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.
Uranus, which was discovered by Sir William Herschel Prior to the invention of the telescope, the only known planets were Mercury, Venus, Earth, Mars, Jupiter, and Saturn.Ura â¦ nus was the first planet discovered by telescope.46 people found this useful.ercury, Venus, Mars, Jupiter and Saturn have been known, or at least seen since man first looked up into the sky. Uranus was also visible with the naked eye, but was probably â¦ not recognised as a planet by our early observers.  With the invention of telescopes, other planets were later discovered.