1896: On 20 October 1896, Félix Tisserand died.
Tisserand was a French astronomer especially noted for his textbook Traité de mécanique céleste ('Treatise on Celestial Mechanics'). This work, an update of Pierre-Simon Laplace's work on the same subject, is still referred to by current writers of celestial mechanics books.
From 1892 until his death he was director of l'Obseratoire de Paris (Paris Observatory)
Media modal
18 October
17 October
16 October
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.