The award winning Science Weekly is the best place to learn about the big discoveries and debates in biology, chemistry, physics, and sometimes even maths. From the Guardian science desk  Ian Sample, Hannah Devlin &  Nicola Davis meet the great thinkers and doers in science and technology. Science has never sounded so good! We'd love to hear what you think, so get in touch via @guardianaudio or podcasts@theguardian.com

Jefferson Graham is a Los Angeles writer, photographer, the host of the PhotowalksTV travel series on YouTube, Amazon and Roku channel, a former Usa Today, columnist and host of the podcast the iPhone photo show. Replays of the old Talking Tech podcast are featured here.

John D. Ross is following