The Technoptimist Show 6/23/21: Lab-Grown Mini Hearts Have a Humanlike Beat

Join Teresa Carey as she breaks down the latest news on the technology that is solving the world’s biggest problems. In today’s show, Teresa covers lab-grown mini-hearts, a floating city, and a new record for nuclear fusion.

To learn more about the topics:
New Lab-Grown Mini Hearts Have a Human-Like Beat
The Maldives Are Constructing a Floating City to Combat Rising Sea Levels
China’s “Artificial Sun” Sets a New Record for Nuclear Fusion

About the host:
Teresa Carey is a senior staff writer at, where she covers genetics and the environment. She is also a US Coast Guard licensed captain and a NatGeo Explorer. In addition to Freethink her work can be found in BuzzFeed, Scientific American, PBS NewsHour, NPR Weekend Edition, Smithsonian and more. @teresa_carey