1822: On 25 August 1822, Sir William Herschel died.
Herschel, whose original name was Friedrich Wilhelm Herschel, was a German-born English astronomer, the founder of sidereal astronomy, the systematic observation of the sky.
Along with his sister Caroline, he discovered the planet Uranus, hypothesised that nebulae are composed of stars, and developed a theory of stellar evolution.
Media modal
23 August
22 August
21 August
stay updated
Subscribe to our newsletter to receive the latest news, mission updates, and exclusive insights directly in your inbox. Be the first to know about our upcoming projects and breakthroughs.