January 12, 2007, Newsletter Issue #46: Brief History of the Telescope
Tip of the Week
Italian inventor Galileo first invented a rudimentary telescope in the 1600s, but telescopes did not really improve until the 19th century, when astronomy became increasingly popular. By the 20th century telescopes had gotten bigger and more advanced, and astronomers could identify many more objects far deeper in space. Home astronomy also became much more popular in the 20th century, and today, home telescopes are advanced enough for backyard astronomers to see galaxies, stars, and planets that were unknown to scientists like Galileo.
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