The team explores the story of Jodrell Bank Observatory and its towering Lovell telescope, which scientists have used to listen to the cosmos for almost 70 years. Maggie Aderin meets research scientist Emmanuel K Bempong-Manful to discover who decides who gets time on the renowned telescope, and what it can reveal. Chris Lintott joins Danielle George, GCHQ's chief scientific adviser for national security, to examine previously top-secret files revealing Jodrell Bank's role at the height of Cold War tensions