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Where should data centres be built? We talk to an entrepreneur hoping to build a virtual data centre in space, by using computing power that’s already up there – in satellites.
Also this week: A Facebook whistleblower, whose story inspired a new movie, talks to us about social media and AI. And could rotating sails help to reduce container ship exhaust pollution?
Presenter: Chris Vallance
Producer: Tom Quinn and Imran Rahman-Jones
(Image: An illustration of satellites orbiting Earth and sending signals to each other for communication. Credit: Getty Images)