Marcus Chown is an award-winning writer and broadcaster. Formerly a radio astronomer at the California Institute of Technology in Pasadena, he is now cosmology consultant of the weekly science magazine New Scientist. Marcus has written a number of popular science books, including The Magic Furnace, The Universe Next Door, The Never-ending Days of Being Dead and Quantum Theory Cannot Hurt You.
His latest book is We Need to Talk About Kelvin.
First broadcast on 23rd October 2009