Short Wave

Dive into the fascinating world of dark matter, the invisible substance that shapes our universe. Discover how it constitutes most of the cosmos while remaining undetectable. Scientists discuss the indirect methods used to uncover its secrets, tracing its historical roots through remarkable discoveries by astronomers. Learn about the challenges faced in mapping its distribution and the new theories that challenge our understanding of the universe. Brace yourself for a journey into the unknown, probing the mysteries that lie beyond our visible reality.

Melissa Cristina Marquez, a shark scientist and PhD candidate from Western Australia, dives into the crucial role sharks play in ocean health. She passionately discusses how sharks help mitigate climate change by regulating marine ecosystems. The conversation reveals their surprising impact on seagrass growth and the balance of marine life. Marquez also addresses misconceptions about sharks, advocating for their conservation and urging us to rethink our views on these misunderstood animals.

Joanne Silberner, a health reporter known for her insightful work on environmental issues, discusses the often-overlooked dangers of noise pollution. She highlights how everyday sounds can elevate blood pressure and increase stress levels. The conversation dives into historical efforts to regulate noise and the impact on marginalized communities. Silberner emphasizes the need for federal oversight and community action to combat this silent crisis, urging listeners to reflect on their soundscapes and advocate for quieter urban environments.

Join Jon Hamilton, NPR's science correspondent with a focus on health and science, as he dives into fascinating research on African ancestry and brain disorders. They discuss the underrepresentation of Black Americans in genomic studies and how this gap affects understanding risks for conditions like Alzheimer’s and stroke. The conversation highlights initiatives aimed at fostering trust in the Black community and ethical engagement in research, along with groundbreaking findings on how ancestry influences brain health.

Astrobiologist Michael Wong, a science fiction enthusiast, dives into the fascinating science behind the '3 Body Problem' and its implications for our understanding of planetary orbits. He unpacks the complexities of gravitational interactions, highlighting the chaotic nature of the three-body problem. Wong also discusses the intriguing possibility of Proxima Centauri b harboring life and raises thought-provoking ethical concerns about contacting extraterrestrial civilizations. Plus, he explores the mysteries of dark matter and its vital role in cosmology.

Uncover the science behind perfect summer barbecues. Learn how low and slow cooking transforms tough cuts into mouthwatering delights. Delve into the chemistry of meat as proteins like actin and myosin work their magic. Discover how collagen breaks down through gentle cooking techniques to enhance flavor and tenderness. Explore the role of different wood types in creating that perfect smoky essence, along with temperature’s impact on texture. This culinary journey combines art with science for barbecue enthusiasts!

Discover the recently unveiled Lokiceratops rangiformis, a unique horned dinosaur named after the Norse god Loki. Learn about its evolutionary role and the site of its discovery in Montana. The podcast also shares the inspiring recovery of the Iberian lynx through successful conservation efforts. As a bonus, get excited about an upcoming nova explosion in the T Coronae Borealis star system, visible without a telescope, and find tips for amateur astronomers to catch this spectacular celestial event.

In this engaging discussion, Sadie Dingfelder, a science journalist and author of "Do I Know You?" shares her journey with face blindness, a condition affecting 10 million Americans. She insightfully discusses the brain's inherent wiring for facial recognition and the emotional challenges that accompany her experiences. Listeners learn about the fusiform face area and how it shapes our social interactions. Sadie also sheds light on other cognitive conditions, advocating for empathy and understanding of diverse cognitive experiences.

Sarafina El-Badry Nance, an astrophysicist known for her expertise in supernovas, dives into the mystical lives of stars. She unpacks the fascinating life cycle of Betelgeuse, from its birth in molecular clouds to its impending explosion. Learn about the upcoming nova event in T Coronae Borealis, and discover how stars evolve and end their lives in spectacular fashion. Sarafina connects these cosmic events with human experiences, revealing the beauty and drama of the universe beyond our planet.

Ferris Jabr, a science writer and author of "Becoming Earth: How Our Planet Came to Life," discusses the Amazon rainforest's role in generating its own rain through biological processes. He shares insights on how life transforms the planet, from altering weather patterns to influencing the atmosphere. Jabr emphasizes viewing Earth as a living system, highlighting the interconnectedness of all life and our ethical responsibilities towards it. His narrative illustrates the intricate relationships that define our environment and the urgent need for action to restore ecological balance.