ESA space history on Twitter: "#OTD 13 March 1781 William Herschel discovers Uranus.Had first reported it as a comet. https://t.co/C1UL5ymGGD https://t.co/ceVFW9ajTm" / Twitter
William Herschel (1738-1822) discovering Uranus in 1781. His sister Caroline taking notes Stock Photo - Alamy