The thrill of not knowing all the answers | Harini Bhat
On TED Talks Daily, scientist and storyteller Harini Bhatt describes how embracing not knowing transformed her from a self-described "wannabe know-it-all" into the creator of the YouTube channel Today I Learned Science. She shares how following her curiosity about the Teotihuacan pyramids led to her first viral video and a mission to translate rigorous scientific research into captivating stories for everyone. Through striking examples-from a brain turned to glass, to new ideas about the origins of life, to watching an embryo implant in real time-she argues that science belongs to anyone willing to stay gloriously curious and keep asking why.
Creation Story
Host Latif Nasser interviews paleoanthropologist and evolutionary biologist Alaa Alshamahi about her journey from an ultra-conservative, creationist Muslim upbringing and teenage missionary work to becoming an evolutionary scientist. She describes studying evolution at University College London as a "double agent" intent on disproving Darwin, the specific genetic evidence that shattered her creationist worldview, and the personal cost of leaving her religious community. Alaa then connects her own experience of crossing worlds to the story of human evolution, including interbreeding with Neanderthals and Denisovans, and explains how her crisis of faith now shapes a more empathetic approach to people who reject scientific findings.
Cosmic Queries - Get Some Space
Neil deGrasse Tyson and co-host Chuck Nice field a grab bag of listener questions on topics ranging from black holes and Hawking radiation to dark matter, exoplanet life, and the structure of the observable universe. They also discuss the feasibility of colonizing other planets, the impact of military versus science funding, how solitude enabled figures like Isaac Newton to make breakthroughs, and the role of science literacy in preventing societal self-destruction.
The Spark of Life
Host Molly Webster speaks with applied biophysicist Narosha Murugan about the discovery that living cells emit extremely faint light tied to their metabolism, and explores how this challenges the traditional lock-and-key view of cellular signaling. They discuss possible mechanisms for how this light is generated in mitochondria and potentially guided through cellular structures, its hypothesized roles in brain function and consciousness, and how its distinct signatures can already be used experimentally to detect cancer and distinguish living from dead tissue. The conversation ends with reflections on "life flashes" at fertilization and death, and on thinking of living beings as organized patterns of energy and light.