Dr Karl
Dr Karl is joined by the astrophysicist Professor Lisa Harvey Smith.
5 Live Science Podcast · BBC Radio 5 Live
March 16, 201749m 19s
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Show Notes
Dr Karl joins Dr Rhod to answer all your science questions, including the multiple mysteries of black holes and the science of ultra running. This week they're joined by a very special guest, the astrophysicist Professor Lisa Harvey Smith.