Dr Karl
Dr Karl answers listeners' questions about the weird and wonderful world of science.
5 Live Science Podcast · BBC Radio 5 Live
June 23, 201648m 24s
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Show Notes
Dr Karl answers listeners' questions about the weird and wonderful world of science, including could our universe be the inside of a black hole, which itself is in another universe and which itself is the inside of another black hole, continuing ad infinitum?