New Scientist Podcasts

How much faith should we be putting in artificial intelligence? As large language models and generative AI have become increasingly powerful in recent years, their makers are pushing the narrative that AI is a solution to many of the world’s problems.But Meredith Broussard says we’re not there yet, if we even get there at all. Broussard is the author of More than a Glitch: Conf

#246Our best climate models for helping limit global warming to 1.5oC may have wildly overestimated our chances. To reach this goal, models are relying heavily on geological carbon storage, a technology that removes carbon from the atmosphere and places it underground. But it may not be nearly as effective as models have suggested, making the task of decarbonising much more difficu

How do you destroy a black hole? Turns out they're pretty tough cookies.Kicking off a brand new series of Dead Planets Society, Chelsea Whyte and Leah Crane take on the universe's most powerful adversaries. With the help of their cosmic toolbelt and black hole astronomer Allison Kirkpatrick at the University of Kansas, they test all the destructive ideas they can think of.Whether i

#245The multiverse may be bigger than we thought. The idea that we exist in just one of a massive collection of alternate universes has really captured the public imagination in the last decade. But now Hugh Everett’s 60-year-old “many worlds interpretation”, based on quantum mechanics, has been upgraded.The northern white rhino is on the brink of extinction but we may be abl

Half of the human population undergoes the menstrual cycle for a significant proportion of their lifetimes, yet periods remain a taboo topic in public and private life. And that makes it harder both to prioritise necessary scientific research into conditions like endometriosis and for people to understand the basics of how their bodies work.Blood: The Science, Medicine, and Mytholo

#244Researchers have successfully turned lymph nodes into miniature livers that help filter the blood of mice, pigs and other animals – and now, trials are beginning in humans. If successful, the groundbreaking medical procedure could prove life-saving for thousands of people waiting for liver transplants around the world. So far, no complications have been seen from the procedur

This is a re-airing of a podcast originally released in March 2021.From beetle explosions to the deep dark depths of the ocean, this episode is all about escape.The team discusses the amazing (and sometimes disgusting) way bombardier beetles escape predators.They explain what it takes for an object to reach escape velocity, celebrating the mathematical mind of Katherine Johnson whi

#243As we age our immune systems do too, making us less able to fight infections and more prone to chronic inflammation. But a team of scientists has been able to reverse these effects in mice, rejuvenating their immune systems by targeting their stem cells. But there’s a long road to trying the same thing in humans.Have you seen the incredible new black hole image? Just a couple

Fish you wear like a gas mask, moss that turns a robot sentient and critters that will eat your rash – all these oddities and more cohabit on the planet Vesta, the setting for the animated miniseries Scavengers Reign, where a group of human space travellers must innovate with what they find in the landscape to survive. While all this sounds fantastical, there are many parallels w

#242Human population growth is coming to an end. The global population is expected to peak between 2060 and 2080, then start falling. Many countries will have much lower birth rates than would be needed to support ageing populations. These demographic projections have major implications for the way our societies function, including immigration and transportation, and what kinds of