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New and Emerging diseases go under the microscope in this week's Naked Scientists, as we discover how new diseases arise, cross species barriers and spread throughout the population. We hear about the origins of HIV, the conditions that create hotspots for new pathogens and a fatal new virus found in Africa. Also, we find out why some people are genetically pre-disposed to AIDS, how the giardia bug changes coats to trick the immune system and why captive elephants live shorter lives than in the wild. Plus, in Kitchen Science, Ben takes the Tabasco Temperature Test to see how mints and chilli affect the temperature on your tongue!

The science of sight submits to the scrutiny of the Naked Scientists this week as we look at lens replacement surgery, the genetics of degenerative eye diseases such as macular degeneration, and find out whether gene therapy and stem cells can repair the damaged retina. Ben undergoes a laser-vision correction test to discover how corneal re-shaping can be used to correct poor vision, and Meera meets a man to uncover the basis of blinking and the composition of tears. Plus, how we hear how seashells have inspired tough new ceramics, uncover a signal that links food to body fat, and hear how a fraction of a dose of vaccine may be enough to prevent an epidemic. In Kitchen Science, Ben and Dave wonder what happens to the rainbow-effect on a CD when you hold it under a street-light...

The Naked Scientists hit Hollywood for a special show all the way from California. We meet the cream of Californian scientists from the University of California at LA and at San Diego to find out why designing ocean-going robots is like giving birth; what some dust-covered 50-year old experiments can reveal about the origins of life, and why your friends and even their friends, can affect your weight. We discover the work of the Population Institute, who use radio soap-operas to inspire better family planning. Plus, we find out why plants get jetlag, how nanotechnology can help foil terrorist attacks and we visit the Naked Cafe to discuss the Big Bang over coffee. In Kitchen Science, Ben and Carlos Camara generate x-rays from sticky tape!

This week we hear how lasers might replace X-rays as a way to see inside the body, we delve into the genetic code of the extinct woolly mammoth and hear about a government competition to exploit the power of the web to help people to find public toilets and post boxes. We also tackle your science questions including finding out why mosquiotoes don't transmit diseases like dirty needles, how animals cut their umbilical cords, whether it's better to drink red wine or grape juice and why cold tea tastes strange! Plus, Dave creates a ghostly one-way window effect in Kitchen science.

We dig into the world of archaeology this week to uncover what DNA is revealing about how humans domesticated plants and livestock. We also delve into the story of stonehenge and hear how scientists are using new isotope techniques to find out how it was built and what when on there. We also trace the history of the civilisation that carved the Nazca lines in South America and then disappeared without trace, but why? Plus, we hear about a new way to combat allergies with a course of injections, how music could improve your health, and how fish elect their leaders. And in kitchen science we show you how to make you own desktop seige weapon!

This week's Pathological programme brings you a glimpse into the world of the pathologist. We attend a real autopsy to discover how a pathologist uncovers a cause of death, and hear how Cambridge scientists have found a new way to stop Multiple Sclerosis (M.S.) in it's tracks. We also find out how a common rock can lock away carbon, why forest fungi give out less greenhouse gases when they're warm, and shed some light on the workings of world's smallest solar panels. Plus, in place of Kitchen Science, Ben tries to stop a virtual outbreak of the plague!

It's been cold in the UK this week! So what better way to spend your time than to stay in the warm and find the answers to all of your nagging science questions... So if you've ever wondered how fireworks have so many pretty colours, why a hedgehog will choose to go to sleep in a bonfire pile, or any science, nature, medicine or technology question - ask us now!

Disco Psychology - the science of drinking and dancing feature in this week's Naked Scientists. We find out what your dance moves say about your genes and why drinking alcohol or smoking cigarettes makes faces seem more attractive. Also, we discover what happens in the minds of people suffering from Post Traumatic Stress Disorder, PTSD. Plus, researchers make brain washing a reality, roll out a stream of x-rays from a reel of sticky tape, and reveal why the smell of rotten eggs may be good for your blood pressure! In Kitchen Science, we re-train Ben's brain see the world from a different angle!

Nuclear fusion is the power source inside the Sun - so can we copy the physics of the stars to generate energy here on Earth? This week, we find out how nuclear fusion works, and how to mimic a star on Earth...

New techniques to test for Down's Syndrome and oesophageal cancer feature in this week's Naked Scientists, along with the nanotechnology that may let you climb walls like spider man! We also take on your science questions and find out if it's possible to shoot a satellite, what keeps the Earth's core so hot, and how you can pass through fire unharmed! Plus, in a back-to-basics Kitchen Science - Dave makes drops of milk bounce out of his tea!