5 Live Science Podcast

Dr Karl discusses why boiling water turns to steam and ice so quickly in very cold temperatures. Rhod carries out an experiment to prove it.

On this week's edition, a drug that can restore hearing to deaf ears, and the answer to the question why transplanted organs are rejected by the immune system if they aren't matched correctly.

Dr Karl joins Rhod Sharp to discuss global warming and answer the really burning question posed by small children everywhere; why is snot green?

Andy Crane is joined by Dr Karl for the first science phone in of 2013. He tackles issues from password protecting computers, to why chickens lay different coloured eggs and where are all the transitional fossils?

This week we find out why cells in a honeycomb are hexagonal? What was before the big bang? As well as the top 10 science events of 2012

For Christmas, Dr Chris Smith and the team join Dotun for a look at the lighter side of recent scientific news, including whether the festive season cures cancer and how speedbumps help diagnose appendicitis.

On the latest edition of Dr Karl, we find out if ice conducts electricity the same way as water. We also discover if the five second rule is true, after food is dropped on to the floor. We also take a look at people who can remember every event of every day of their lives. They have HSAM - Highly Superior Autobiographical Memory.

A british team exploring ice two miles down in Antarctica that hasn't seen the light of day for 500,000 years, are there fewer stars now than when we were younger and how could it take a week for a bruise to visibly develop on a listener's bottom.

Dr Chris and the Naked Scientists with a closer look at some of this week's science stories including; a trigger to regrow heart cells and the prophylactic effects of having children.

Dr Chris, the Naked Scientist stands in for Dr Rhod tonight and fields questions about norovirus, why humans have rhesus positive and negative blood and wandering giant planets.

Bacteria on the teeth, the age of the Sun and what's it called when you're on a train and another train moves and you think it's your train that's moving? Dr Karl and Dr Rhod wrestle with your science queries. You can send your questions to UpAllNight@bbc.co.uk anytime, just put Dr Karl in the subject line.

Dr Karl joins Dr Rhod to discuss different approaches to CPR and emergency medicine, how 4G does what it does and why so few acorns this autumn?

A molecular whodunit involving MRSA, gene therapy for epilepsy, and whether women synchronise their menstrual cycles are all on the billing this week.

As Chinese communist party prepares to unveil its new leaders Dr Karl discusses the discovery of the new roaming planet with no star of its own to orbit, and we find out if gravity travels at the speed of light.

Dr Chris and colleagues with weeks science news, a close look at ash dieback disease and the truth about autophagia.

Dr Karl takes questions on bacterial infections, trauma medicine and HIV.

In this edition: in 2010, the USA used 98 quadrillion British Thermal Units (BTUs) of energy - about 20% of the world's total. About 40% of that went into buildings. How this could be easily and hugely improved without loss of comfort. Why both men and women, wearing revealing attire are perceived as more sensitive, but less competent . And Brain freeze finally explained - almost

The Naked Scientists join Dotun to explain the new theories on the formation of the Moon and we meet the stand up mathematician who's currently on tour around the UK.

Dr Chris Smith and colleagues with science news. This week; fighting bacterial fire with fire and the plans to help the British Oyster make a comeback.

Dr Chris and colleagues share the latest science news with Dotun Adebayo. This week; the shiniest fruit in nature and how your online life affects the way you vote.