Science Weekly Folgen

This week Artemis II’s four-astronaut crew broke Apollo 13’s distance record, becoming the humans to travel the farthest from Earth. Now on their way home, the team has experienced tech malfunctions, views like no other and moments of intense emotion, all in under 10 days. To find out about all the highs and lows of the mission, Madeleine Finlay hears from the Guardian’s science editor, Ian Sample. Help support our independent journalism at theguardian.com/sciencepod

The number of human cases of guinea worm, a painful and debilitating tropical illness, fell to a record low of just 10 last year, according to the Carter Centre, the foundation set up by the late former US president Jimmy Carter. But despite years-long declines, it remains almost impossible to completely eradicate the parasite. Only one human illness has been entirely eradicated: smallpox. Why is it so difficult, and could guinea worm one day be the second? Ian Sample hears from co-host Madeleine Finlay, and David Molyneux, emeritus professor of tropical disease microbiology at the Liverpool School of Tropical Medicine. Help support our independent journalism at theguardian.com/sciencepod

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. • This episode was amended on 13 July 2026. An earlier version referred to Finnish fjords, but there are no fjords in Finland. The reference has been replaced.. Help support our independent journalism at theguardian.com/sciencepod