Jamie Oliver asks our very own Naked Scientist, Dr Chris why his yorkshire puddings are better than those made by his wife. Other matters up for discussion include diamonds, the four minute mile and mushroom clouds.

How ancient bones are about to help us to treat modern bad backs and breakthroughs in heart disease and melanoma detection. Dr Chris Smith and the Naked Scientists have the answers.

Dr Chris sits in for Dr Karl and the universe is the main topic of conversation.

Dr Chris Smith with news from the annual American Association for the Advancement of Science meeting in Washington.

How could solar flares disrupt global communications? Have you ever heard of upside down rivers? Dr Karl and for a special bonus week, Dr Chris have the answers to another weeks of science conundrums.

Evidence that eating oily fish can reduce the risk of developing some common forms of blindness and a clever new way to see inside the body.

Dr Dotun sits in with Dr Karl as they discuss the shadows of the sun, why snow keeps you warm and the different uses for urine.

Dr Chris Smith and the team are here with all the latest science news.

Once again Dr Karl attempts to answer all your science related questions.

On this week's edition of Dr Chris Smith looks at Leprosy Day, which is intended to raise awareness of the 250,000 new cases of leprosy that are still occurring around the globe every year. Also Ben Valsler and Diana O'Carroll have been taking a look at some of this week's top science stories including some science that's straight from the horse's mouth or rather the cow's rumen - researchers have been reaching into a cow's stomach to discover the secret of making better biofuels!