Physics
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Nicola Davis explores how an ancient tree, pulled from a bog, has been used to uncover the timing and environmental impacts of the Earth’s last magnetic pole switch -
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The second part of Ian Sample’s 2016 interview with Prof Sir Roger Penrose, which includes a quantum theory of consciousness and the age-old question of whether mathematics is invented or discovered -
In this episode from 2016, the mathematician and physicist asks: has string theory become too fashionable? And do we place too much faith in quantum mechanics?
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Madeleine Finlay takes Science Weekly on a trip to discover what it would be like to fall into a supermassive black hole
Notes and queries How do spacecraft manoeuvre in the vacuum of space?