Check out the Inaugural Lecture for the Opening of the 157th Academic Year of Politecnico di Milano by Camilla Colombo on “Satellites and Space Debris: Services from Space in a more sustainable world”.
The whole playlist is available at https://www.youtube.com/playlist?list=PL_06oobzMEuuOQbR3z7TZOr4_K5kGc-qi
For more info about the event you can visit https://www.polimi.it/dettaglio-apertura/article/10/inaugurazione-157-anno-accademico-8312/