The winning names for two new moons of Pluto are "Vulcan" and "Cerberus". Wiring the brain of Rat A to the brain of Rat B and watching them communicate. The genetic effect of lack of sleep. An old space tourist thinks sending old people to Mars is a good idea. And the deepest undersea vents are discovered, with some freaky life nearby.

Hosts: Ed Brown, Dr. Shayne Joseph, Penny Dumsday, Lucas Randall and Dr. Simon O'Toole.

The discovery of the smallest planet ever found, and why we should care. Flowers use electric fields to communicate with bees. Could the flu virus have an Achilles' heel? And why are scientists dropping dead mice from helicopters in Guam? Mosquitoes could be developing a resistance to Deet, internet entrepreneurs announce Nobel-like prizes, and January 2013 was quite hot.

Hosts: Ed Brown, Dr. Shayne Joseph, Penny Dumsday, Lucas Randall.

The toilet habits of a small mammal gives climate scientists 55,000 years of data. The humble appendix might not be so useless. An experiment gives some clues about how to repel Earthquakes. The bacterial mechanism behind melamine contaminated milk is discovered. Brushing your teeth might be doing more harm than good. Why is the human body so poorly 'designed', and Captain Kirk weighs in on the name for a Plutonian moon.

Hosts: Ed Brown, Penny Dumsday, Lucas Randall.

Huge meteor blazes across the sky in Russia. A computation of what the last common ancestor of placental mammals looked like. A robot with artificial but transplantable organs goes on display. Why insects constantly clean their antennae. The self-assembling molecules that give clues to the origins of life. France moves to curb light pollution. Thousands of spiders crawling across the Brazilian sky.

Hosts: Ed Brown, Dr. Shayne Joseph, Lucas Randall, Dr. Simon O’Toole.

Topics covered:

TW Hydrae is a star that should be too old to have a proto-planetary disc, but has one. The skeletal remains of King Richard III are found under a car park in Leicester, the secret to owls rotating their heads, and Iran launches a monkey into space. Plus the strange things taught as science in some schools, and lots more!

Hosts: Ed Brown, Dr. Shayne Joseph, Penny Dumsday.

Topics covered:

A recap of what we talked about last week, in the episode that disappeared. Leprosy bacteria induces stem cells in the host body, dung beetles use the sky to navigate, and a Harvard Professor that doesn't plan to clone Neanderthals. Scientists watched naked babies falling over and we look at some of the best White House petitions.

Hosts: Ed Brown, Dr. Shayne Joseph, Penny Dumsday, Lucas Randall, Steve Nerlich.

Topics covered:

Genetic expression differs between belly fat and thigh fat, and a breath test that could detect bacterial infections almost immediately. Why Mars colonists could get fat and lazy, and the selection criteria for the Mars One reality show. Plus the defensive mechanisms of shark fetuses, and millions cry out in terror as plans to build a Death Star are scrapped.

Our end of year 'bloopers' episode is online! For all the funny, interesting and weird bits that didn't quite make the show in 2012, download the show from our website, at scienceontop.com/2012. This show is NOT on our feed, to listen you will HAVE to download it manually from the website. It does contain swearing and content that might not be suitable for children.

So go to scienceontop.com/2012 and click the download link!