Spazio e sostenibilità: una sfida globale oltre l’atmosfera | Pierluigi Di Lizia | TEDxSaronno

Space Environment & Sustainability - The space environment, starting 100 km above Earth, is crucial and needs preservation [2][3] - The number of operational satellites has tripled in the last 5 years, reaching over 10,000 [8] - Approximately 35,000 artificial objects are tracked in orbit, including debris [9][10] - Space debris constitutes about 2/3 of the tracked objects [12] - Satellites orbit at approximately 28,000 km/h, 30 times the speed of an airplane [13] Risks & Challenges - Collisions between satellites and debris pose a significant threat [14] - The 2009 collision of Iridium 33 and Cosmos 2251 created over 2,000 large fragments [15][16] - Lack of a governing body to enforce collision avoidance maneuvers is a concern [16] - Re-entering launcher stages can be mistaken for meteorites, highlighting space debris issues [18] Solutions & Mitigation - International cooperation is driving efforts to mitigate space debris risks [19] - Development of technologies for debris monitoring, removal, satellite life extension, and recycling is underway [20] - Procedures for end-of-life satellite management are being developed [20]