![]() Galileo observed Jupiter and found that it had moons that orbited the planet itself and not the Sun or the Earth. During the Renaissance, in the early part of the seventeenth century, the astronomical telescope was “invented” almost simultaneously by Thomas Harriot and Galileo Galilei (the telescope was invented by Hans Lipparshey, but Harriot and Galileo were the first to use it for astronomy). Very rarely, a comet might be visible in the sky, and even more rarely, a supernova explosion would suddenly burn brightly in the sky, over the period of months or sometimes years.įour hundred years ago there was a revolution, as Western Europe started thinking about art and science in a very different way, similar to the thinking of the ancient Greeks. Occasionally there was the flash of a meteor, a short-lived shooting star. To ancient people, the stars appeared as fixed points of light, only interrupted by the planets meandering slowly through the night sky. ![]() It is also because our modern understanding of the Universe is so totally different from the ancient view of the Universe. This is partly because the skies are now much brighter because of streetlights and other outdoor lighting, in all but the remotest places. A Short History of the Telescopeĭuring the middle ages, if you were to look up at the night sky you would have seen something very different from the view you see when looking at the sky today. These robotic telescopes are beginning to revolutionize scientific investigations and also make them accessible to students and teachers, in ways never seen before. With technological advances over the past 20 years, it is now possible to create networks of robotic telescopes. Telescopes are the fundamental instruments that astronomers use to make discoveries about the Universe.
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