Model of the Mount Wilson Observatory
Modellbau Keyser, Berlin

The Mount Wilson Observatory is built in 1904 in the mountains north of Los Angeles. Its mirrored telescopes are the largest in the world at the time and make groundbreaking discoveries possible. For example, in 1929 Edwin P. Hubble and his colleagues are able to determine that galaxies appear to be moving away from us, thus proving that the universe is expanding.

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