The tenth episode showcases female scientists studying holes of various forms. Gabriele Betancourt-Martinez from the University of Maryland explains how she uses xrays to study black holes in space. Back on Earth, Ewa Sypianska from Cardiff University explains how drifting bacteria that are impacting on glaciers forms a different type of black hole and dark matter. Finally, Keri McNamara is a detective volcanologist from from Bristol University who has been studying the history of eruptions of the Aluto volcano in Ethopia like investigating a crime.

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