A cure for ageing, without the price-tag? It might sound too good to be true, but the team digs into new evidence that shows low-frequency ultrasound may rejuvenate cells in our body which are thought to cause age-related diseases. Our galaxy, the Milky Way, is missing half of its matter - and the team asks where it’s all gone. They also discuss NASA’s ShadowCam which has taken pictures of Shackleton Crater on the south pole of the Moon, a region of particular interest if humans are to settle on the Lunar surface.Despite dramatic heat waves over the past few years, the Earth has actually been in a cooling period, known as La Niña, for the last three years. So with an El Niño on the way - a period of warming - the team finds out about the coming climate impacts, and how we might breach 1.5 degrees of global heating.Oyster mushrooms eat nematodes - who knew? And as the team finds out, they even do it in a pretty gruesome way, using a sort of nerve gas. The question is, can they still be considered vegan?For a unique take on the climate crisis and the personal responsibility we feel in tackling it, Rowan chats to Assaad Razzouk, author of Saving the Planet Without the Bullshit: What They Don't Tell You About the Climate Crisis. He explains why we shouldn’t worry about going vegan or cutting down on flying, and reveals the real things we should be angry about when it comes to climate change.On the pod are Rowan Hooper, Penny Sarchet, Madeleine Cuff, Michael Le Page and Leah Crane. To read about these subjects and much more, you can subscribe to New Scientist magazine at newscientist.com.Events and discount codes:newscientist.com/tours Hosted on Acast. See acast.com/privacy for more information.