To celebrate 10 years since they were first detected, we're examining gravitational waves. What are they? And how do we find them? Like this podcast? Please help us by supporting the Naked Scientists

On Ask! the Naked Scientist this week: What led to the 'leopard spots' found on Mars? What is the purpose of finger and toe nails? How do bone conduction headphones work? Why do non-magnetic metals sometimes interact with magnetic objects? What role did our teeth play in our evolution? What's the cause of my unintended weight loss? Could astronauts create an environment for life on Mars? What's wrong with a pear shape? Like this podcast? Please help us by supporting the Naked Scientists

Sva writes in, asking whether stories of snakes being tamed by human milk have any grounding in science. James Tytko took on the question with the help of herpetologist Fortunate Mafeta Phaka, and Angela Julian of the Amphibian and Reptiles Group of the UK. Like this podcast? Please help us by supporting the Naked Scientists

In this edition of The Naked Scientists, the strongest hint yet of life on Mars. Should we get excited? Or is it another red herring? Also ahead: The first new UK-wide study of babies in 25 years. We'll find out why it matters. Plus, an ancient lizard-like fossil is discovered on the coast of Devon. We'll uncover the significance... Like this podcast? Please help us by supporting the Naked Scientists

With only a few walls between an astronaut and a rapid death, what do we know about the various dangers to the human body during space travel? Chris Smith spoke with Mark Shelhamer, a professor of Otolaryngology - Head and Neck Surgery at John Hopkins Medical School - about which space hazards are deemed most pressing for our up-and-coming astronauts... Like this podcast? Please help us by supporting the Naked Scientists

What does it take to build a society in space? Today on the Naked Scientists, we explore efforts to make microgravity amenable to humans; including how to harvest energy, make fresh food, and even birth the next generation of space explorers... Like this podcast? Please help us by supporting the Naked Scientists

This month, as the eLife Podcast hits its century, we hear how getting frog dads to cross-foster tadpoles has revealed the way in which some frogs come by their microbiomes, the ants that do gene therapy, signs that disease causes a breakdown in nutrient exchange between the elements of the microbiome, how fungi reprogram immune cells to cause over-reactions in sepsis, and new insights into how tapeworm larvae in the brain cause seizures... Like this podcast? Please help us by supporting the Naked Scientists

Is it dangerous to have floaters in your eye? Can you power a lamp with your mouth? Are nations in the global north more innovative than nations in the global south? How can you control your phobias? How do leap years come about? Dr Chris Smith and Relebogile Mabotja have all the answers... Like this podcast? Please help us by supporting the Naked Scientists

In some parts of the world, some groups will fire guns directly into the air in celebration. Mike wants to know what happens to these bullets, and if they have the potential to be dangerous. To help answer this question, James Tytko spoke with neurologists Yousef Hayder and Luis Rafael Moscote-Salazar... Like this podcast? Please help us by supporting the Naked Scientists

In this edition of The Naked Scientists: A new test to detect Alzheimer's disease long before symptoms first appear. Also, the study showing Earth can sequester only a tenth of the carbon we thought it could. And, how drones, traps and sniffer dogs are protecting the UK's timber industry from beetle attack... Like this podcast? Please help us by supporting the Naked Scientists