This week on Entanglements: What did we learn from our first season? What’s on deck for the future? Our hosts explore these questions and more in conversations with a special guest.

This week on Entanglements: Is fluoride toxic at low levels? Our hosts explore this question in conversations with a professor from the University of Illinois Chicago College of Dentistry and a neuropsychologist and professor at York University.

This week on Entanglements: Should we unleash GMO mosquitoes? Our hosts explore this question in conversations with a molecular biologist from the University of California, San Diego, and a social scientist from North Carolina State University.

Sander Vanderlinden, a social psychology professor at the University of Cambridge, and Hugo Mercier, a cognitive scientist from the Institut Jean Nicod, dive deep into the misinformation crisis. They challenge the narrative of widespread vulnerability to misinformation, suggesting that humans may be more resilient than assumed. The duo also explores how misinformation interacts with personal beliefs and the complexities of vaccine hesitancy, emphasizing trust issues that complicate public health decisions. Their enlightening conversation reveals that the crisis might be more nuanced than it seems.

This week on Entanglements: Is cannabis safe for people with severe mental health disorders? Our hosts explore this question in conversations with a psychiatrist from Yale School of Medicine and a neuroscientist from the University of Calgary.

John Moore, a microbiology professor at Weill Cornell Medicine, and Alina Chan, a scientific advisor at the Broad Institute, dive deep into the controversial lab leak theory of COVID-19's origins. They dissect the ongoing debate between natural zoonotic transmission and the lab leak hypothesis, highlighting key evidence and historical contexts. The conversation touches on the intricate practices of coronavirus research and raises critical questions about biosafety. Additionally, they reflect on the complexities faced by scientists amid misinformation and polarization in public discourse.

This week on Entanglements: Should citizens decide on risky science? Our hosts talk to an Oxford political scientist and a former law and ethics professor about how democracy should play a role in high-stakes decisions.

This week on Entanglements, hosts Brooke Borel and Anna Rothschild talk to a former OpenAI employee and a Princeton professor about AI and doom. Could AI really become an existential threat to humanity? Or is the possibility — highlighted by some 300 AI experts in an open letter last year — overhyped?

The Undark podcast is back with a new format and a new name: Entanglements. Tune in as our hosts explore some of the most contentious topics in science today. Our first 8-episode season will launch November 11, with new episodes dropping every Monday through the end of the year. 

This month: Some regions of the deep ocean contain vast amounts of key minerals, like cobalt and nickel, that are needed to power clean energy technologies. But some scientists warn that mining them could have tremendous consequences, not just for underwater ecosystems, but for the planet as a whole.