5 live Science

On the latest editon of the Naked Scientist - Antimatter, the rules of physics say there should be at least as much antimatter in the Universe as there is matter, the material that we are made from. But scientists can't find it, suggesting either that we've got something wrong, or something else very exciting and important must be happening. Also, why the hand you type with can affect how you feel. As well as a look at some of this week's other leading science breakthroughs

Dr Karl and Dr Rhod join forces to examine solar flares as one heads towards the earth. Microwaves and electromagnetic pulses are also under the spotlight.

Why the working classes are more gentlemanly than the upper classes, how hippos can select the sex of their offspring, and the discovery of a device which stops people talking.

Is the moon moving away from us and what could that mean...how much salt is too much...and why are water molecules like boomerangs?

Dr Chris Smith and colleagues talk us through the week's science news including the recreation of 30 thousand year old flowers and the importance of what mothers eat before conception.

Why juicing greens might not be the best idea, exactly what sound is and why planets are spherical are all under the microscope as Dr Giles joins Dr Karl.

Dr Chris Smith and colleagues explore one of the biggest computers that's getting bigger and one of the smallest computers that'll be with us soon. Also, what do some fruit flies use alcohol for?

Dr Dotun joins Dr Karl this week. They discuss exactly what causes a migraine, how plants work and give a definitive answer to the question "if a tree falls in a forest and there's no one to hear it, does it make a noise"?

Dr Chris discusses vaccines for cancer thanks to a gene from the gut bug Salmonella, and Sir Steve Redgrave pops in to launch a new science and sport initiative ahead of London 2012.

Dr Chris Smith from the Naked Scientists joins Rhod to find out what google and fishing have in common and what makes planets spin. Plenty of other questions answered too!

Dr Chris joins Rhod for the science phone-in this week. The cold weather is on our minds so; how do aeroplanes behave in the cold and why does the norovirus do so well?

Dr Chris & The Naked Scientists with the latest science news

Dr Chris sits in for Dr Karl and discusses the Northern Lights, global warming and microwaves among other things

Dr Karl answers listeners' questions about the weird and wonderful world of science, including; why there are groupings of metals in space. What are nature's best painkillers. And is it really alright to eat food you've dropped on the floor, if you pick it up within seconds.

Dr Chris Smith and colleagues with the latest science stories. This week; the deepest undersea vents ever discovered, why nicotine replacement therapies don't work and the controversy over making H5N1 jump species in the lab.