Aside from his rock music career as Queen guitarist and his doctorate in astrophysics, Sir Brian May is a passionate animal rights campaigner.

His new documentary Brian May: The Badgers, the Farmers and Me airs on BBC Two this evening, documenting new scientific research into fighting bovine tuberculosis.

The 77-year-old has worked with farmers to find a solution for effectively tackling the disease in cows that many believe is spread by badgers. As a result, hundreds of thousands of the…