- Written by Nick Collins
Prof Cox, who hosts the show with comedian Dara O'Briain, said he had hoped to point the Jodrell Bank telescope at the planet Threapleton Holmes B after it was discovered live on air last year and listen for signs of life.
But he claimed he was prevented from doing so because the Corporation was concerned that a discovery of aliens could violate BBC regulations.
Speaking on the BBC Radio 6 Music breakfast show on Wednesday, Prof Cox said: "The BBC actually said 'You can't do that. We need to go through the regulations and health and safety and everything in case we discover a signal from an alien civilization'.