Looking up - 17 Dec

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The Andromeda Galaxy was first seen through a telescope 500 years ago. It is famous for not only being the nearest full-on galaxy to our own, but because it was used to determine the distance between us. This marked it out not as a cloud, as was thought at the time, but an entirely separate galaxy. Suddenly in 1924 we knew for sure that the Milky Way was not the entire universe.
17 Dec 2021 English South Africa Places & Travel

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