Liam O'Mara IV, PhDThe first 9 (of 13) #RingsOfUranus were definitively found on #ThisDayInHistory in 1977. All the gas giants have them, though #Saturn's were seen much earlier. The first claimed sighting of any at #Uranus was by #WilliamHerschel in 1789, but it is doubted he could have seen them.
