Science Weekly

When the water in Flint, Michigan, became contaminated with dangerous levels of lead, Dr Siddhartha Roy, then a third year PhD student, was part of the team of scientists who publicly contradicted state and federal claims that it was safe. He became a local hero until a new piece of research challenged the idea that children in Flint had been left permanently brain damaged by the crisis. His adherence to the evidence, no matter who it offended, has earned him the 2026 Maddox prize, which recognises individuals who stand up for science and evidence, despite challenges or hostility. He tells Ian Sample how he reflects on his experience in Flint, and why he lost friends as a result of his work there. Help support our independent journalism at theguardian.com/sciencepod

As one of the world’s leading forensic anthropologists, Dame Sue Black has acted as an expert witness in a myriad of high-profile criminal cases. Her work has taken her from the lab to active war zones and the aftermath of natural disasters to identify victims’ bodies. Speaking to Ian Sample, the professor explains why standing up in front of a judge and jury has been one of the more terrifying parts of her career, the reputational risk of presenting evidence in court and what the future of forensic science could look like. Help support our independent journalism at theguardian.com/sciencepod

Perimenopause has become a hot topic, with celebrities sharing their experiences and doctors offering tips and advice online. But despite the benefits of growing awareness, a rising number of women are now encountering misinformation about treatments such as HRT. Madeleine Finlay hears from Dr Paula Briggs, a consultant in sexual and reproductive health, about why experts have raised the alarm. Science correspondent Nicola Davis gives the facts on symptoms, tests and treatments. Help support our independent journalism at theguardian.com/sciencepod

You Can See Everything, a documentary about the disgraced health tech company founder Elizabeth Holmes, has enjoyed a record-breaking opening in the US. It is a testament to how fascinated we remain by the convicted fraudster, but what is behind the enduring appeal? US technology editor Blake Montgomery tells Madeleine Finlay why Holmes continues to fascinate us, and reflects on whether the Theranos scandal has had a permanent impact on Silicon Valley. Help support our independent journalism at theguardian.com/sciencepod

In his annual speech on threats to the nation, Sir Ken McCallum, the head of the UK’s intelligence service, MI5, warned that AI had the potential to ‘change the stakes’ on existing and even new bioweapons. To find out why, and how, Ian Sample speaks to Dr Tom Inglesby, director of the Johns Hopkins Center for Health Security and the Bloomberg School of Public Health. He explains what has governments so worried and what measures could be put in place to reduce the risks. Help support our independent journalism at theguardian.com/sciencepod