"While Mercury, Venus, Mars, Jupiter, and Saturn have all been known since prehistoric times, it wasn’t until 1781 that humanity discovered Uranus. Just six years later, in 1787, the largest two Uranian moons, Titania and Oberon, were discovered, followed by Ariel and Umbriel in 1851."https://bigthink.com/starts-with-a-bang/uranus-moons-darkened-one-side/?utm_source=substack&utm_medium=email&utm_campaign=swab
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