Science Weekly

Sauna and cold plunge: where does the evidence stand?

Saunas and cold plunge pools are popping up everywhere in the UK, bringing fiery heat and icy cold to a beach, city farm or park near you. Their users will be ready with all the reasons why it’s good for both the mind and the body. But what’s the evidence for the benefits of sauna and cold plunge? Madeleine Finlay hears from Ian Sample and from Dr Heather Massey, associate professor at the University of Portsmouth’s extreme environments laboratory.. Help support our independent journalism at theguardian.com/sciencepod [https://www.theguardian.com/sciencepod]

Does going to the moon still matter?

If all goes to plan, Artemis II, Nasa’s mission to return humans to the moon, will launch this week. The mission will mark the farthest that humans have travelled from Earth, and the first return to the moon in more than 50 years. It will also pave the way for landing on the moon again as soon as 2028. But given the Apollo missions have already achieved that feat, does going back to the moon still matter today? To find out, Madeleine Finlay hears from the Guardian’s science editor, Ian Sample, the Atlantic journalist Ross Andersen, and Jan Wörner, a former director general of the European Space Agency. Help support our independent journalism at theguardian.com/sciencepod [https://www.theguardian.com/sciencepod]

Transporting the most expensive and volatile substance on Earth

A box the size of a filing cabinet was lifted by crane, slowly moved and placed very carefully in the back of an unassuming lorry earlier this week. What looked like a casual drive around the Cern campus was actually a world-first experiment in transporting antimatter, the most expensive and volatile substance on Earth. To find out why scientists wanted to achieve this milestone, and what happened on the journey, Madeleine Finlay hears from the Guardian’s science editor, Ian Sample, and the Cern physicist Dr Christian Smorra.. Help support our independent journalism at theguardian.com/sciencepod [https://www.theguardian.com/sciencepod]

What sets human consciousness apart from AI?

Why is it like something to be ourselves and how do physical processes create our subjective experience? These questions get to the heart of the knotty problem of consciousness, and they provided the spark for the latest book from award-winning author and journalist Michael Pollan. In A World Appears, Pollan goes in search of answers about what we do and don’t know about consciousness, and why it has proven such an elusive phenomenon. He tells Ian Sample how thoughts and feelings shape our conscious experience, whether we can learn anything about human consciousness from AI, and why he thinks our minds need to be defended in today’s technology saturated world. Help support our independent journalism at theguardian.com/sciencepod [https://www.theguardian.com/sciencepod]

Off Duty: The Crime

On the evening of 29 December 2011, police officer Clifton Lewis was moonlighting as a security guard at a Chicago minimart when two men walked in. They shot Lewis several times, then took off with his gun and police star. A week later, police had their suspects: four men affiliated with a gang called the Spanish Cobras. For hours, under intense police questioning, they all said they did not do it. But that did not seem to matter. This is episode one of Off Duty, an investigation by the Guardian’s Melissa Segura. Help support our independent journalism at theguardian.com/sciencepod [https://www.theguardian.com/sciencepod]