The story of black holes, with Marcus Chown

Black holes are surely one of the most fascinating and mysterious phenomena in the known Universe. But few people know that the story behind their discovery, and the cast of dogged, often ignored scientists behind it, is just as interesting.

In this episode we catch up with the award-winning science writer and long-time BBC Science Focus contributor Marcus Chown. We talk about his new book A Crack in Everything: How black holes came in from the cold and took cosmic centre stage.

He takes us through the gripping story that saw black holes go from being a mere mathematical curiosity to one of the most talked about cosmic objects ever observed.

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