The number of satellites orbiting our planet has been rapidly increasing in recent years. But what are the risks when they start falling back down to earth?
The European Space agency estimate that by 2030 there will be 100,000 satellites in orbit. We look at whether that estimate is realistic and what it means for those of us living on the ground below, with the help of Jonathan McDowell and Fionagh Thomson. Presenter: Tim Harford Producer: Lizzy McNeill Series Producer: Tom Colls Production co-ordinator: Brenda Brown Editor: Richard Vadon Studio Manager: James Beard
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