Science became an unlikely battleground in the Brexit negotiations, which meant the UK was cut off from the billions of euros provided by the EU’s Horizon programme. Britain’s access to European satellites was also restricted. Adam Fleming asks how the new borders in science have affected the measurement of the polar ice caps and the search for new malaria treatments.

Presenter: Adam FlemingProducer: Sally AbrahamsProduction Co-ordinator: Janet StaplesEditor: China CollinsSound: Neil Churchill