From the moment the telescope is invented, it's our window on the universe...
In the 18th and 19th centuries ever larger and more elaborate telescopes reveal ever more stars.
By the end of the 19th century telescopes are so large and reveal so many stars, astronomers are working overtime just to catalogue them.
There are billions of Galaxies each one containing hundreds of billions stars. Hubble's discovery of the stunning size of the universe and the multitude of stars and stars systems that can be found within it changes forever our picture of the cosmos.
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