This week, we look into the science behind Russian opposition leader Alexei Navalny's death, caused by dart frog poison, and why Russia resorted to such an exotic means of dispatch at all. Also, how cat cancer genomics can provide new insights into human malignancies, and - more with a whimper than a bang - how a dying star skipped the supernova and became an instant black hole. Plus, Barack Obama's stance on aliens sends conspiracy theorists into a frenzy... Like this podcast? Please help us by supporting the Naked Scientists

This week, in partnership with British Heart Foundation, we explore heart failure. Leading experts from the UK's largest independent funder of cardiovascular research tell us about the condition, the symptoms to look out for, what happens when a heart fails, how heart failure has traditionally been managed, and whether it is possible to regenerate a damaged heart... Like this podcast? Please help us by supporting the Naked Scientists

How did life on Earth begin? Why is glass clear when sand is opaque? What is foot-and-mouth disease? Why do some people's accents change when they emigrate? What is trigeminal neuralgia? What is decided before drug trials take place? What's the difference between colloidal silver and quantum silver? Is Lyme disease contagious? And are we gaining or losing mass on planet Earth? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

This week, we discuss a new antibody-based nasal spray that protects against the flu: how does it work? Plus, the tiny self-replicating molecule that may give clues to the origins of life on Earth, whether we should regulate "mirror life" research, and how bacteria protect oak trees from drought and other stresses... Like this podcast? Please help us by supporting the Naked Scientists

Coming up, we explore the tremendous impact mosquitoes have had throughout their evolution. In this episode, we break down what mosquitoes are, how they track down a meal, the diseases they carry, and the strategies that scientists are currently deploying to control them... Like this podcast? Please help us by supporting the Naked Scientists

Do animals enjoy views like we do? Why are some elephants born without tusks? Why do some people pass out on roller coasters? Is there a cure for dizziness? Can the brain recover if you stop drinking alcohol? Why is there a difference between the way that dogs and humans metabolise food? Did hallucinogens play a role in human evolution? Is a heart murmur a side effect of an overactive thyroid? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

This week, we examine a herpes zoster vaccination that can reduce or delay dementia diagnosis. How does it work? Plus, the BBC's Zoe Kleinman explains a social media site for AI chatbots, the discovery of microplastics in remote parts of the Pacific Ocean, and why the Artemis II launch has been delayed once more... Like this podcast? Please help us by supporting the Naked Scientists

Today, we take a closer look at motor neurone disease (MND), a progressive neurodegenerative disorder affecting the motor neurones that control voluntary muscle movement. This programme explores the clinical features of MND, what it is like to live with the condition, how it is diagnosed, and the current approaches to treatment and management... Like this podcast? Please help us by supporting the Naked Scientists

What is consciousness? What is the Nipah virus? What is an induced coma? Is there an official scale for pain? Can you think yourself better? How can you make plasma? And how do you prevent a dog's pee from turning your lawn brown? Dr Chris Smith and Clarence Ford have the answers... Like this podcast? Please help us by supporting the Naked Scientists

Coming up, a world-first gene cancer database is launched. How might it help us gain a better understanding of how disease develops? Plus, the link between vitamin D deficiency and respiratory infections, Austria's back-scratching cow, and SpaceX carries out its latest launch of Starlink satellites... Like this podcast? Please help us by supporting the Naked Scientists