Marcus Chown - on the secrets of the Universe

Marcus Chown is a science writer, journalist and broadcaster and the cosmology consultant for New Scientist magazine. He is the author of many popular science books and recipient of the 2011 Future Book Award for his iPad app The Solar System, Chown says his test for whether he understands something is if he can explain it to someone waiting for a bus. He will be a guest at Writers Week at the 2014 NZ Festival of the Arts.