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[[17th Century|1604]] – German astronomer [[Astronomy|Astronomer]] Johannes Kepler observes that "an exceptionally bright star had " suddenly appeared in the constellation"Ophiuchus. Ophiuchus, which turned " :* It turns out to be the last [[supernova ]] to have been be observed in our own galaxyby a [[Human]], on [[Earth]], with the naked eye. It is later referred to as "Kepler's Supernova." <br>[[1933]] – [[Albert Einstein]] flees Nazi [[Germany]] and moves to the Milky WayUnited States.<br>