Should we rethink navigating by GPS?

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This week 14 European countries warned that “maritime safety and security” was being put in jeopardy by Russian interference. The Royal Institute of Navigation says GPS is so vulnerable to so called ‘spoofing’ and ‘jamming’ that we need to rethink the navigation systems on which shipping relies. Tom Whipple speaks to Ramsey Faragher, CEO of the Institute. Something else with the potential to affect navigation systems are solar storms. Tom visits Professor Tim Horbury and Helen O’Brien at Imperial College London whose instrument strapped to the Solar Orbiter probe, and speeding through space, is giving us more warning about solar activity which could affect us here on earth. And science journalist Caroline Steel brings you the latest scientific research. To discover more fascinating science content, head to bbc.co.uk, search for BBC Inside Science and follow the links to The Open University.