Short Wave

Brian Nord, a computational cosmologist, dives into the intriguing world of dark energy and its vital role in the universe's accelerating expansion. He discusses how this mysterious force pushes galaxies away faster over time, prompting fascinating theories about the end of the universe. Nord highlights methods scientists employ to study dark energy, the implications for cosmic dynamics, and various potential scenarios for our universe's fate, painting a captivating picture of what lies ahead in the vast cosmos.

Ashley Smart, a Senior editor at Undark magazine known for her investigative work on the Human Genome Project, discusses the ethical concerns surrounding DNA donation. She reveals that over two-thirds of the project's genetic information comes from a single unconsented donor, known as RP11. This reliance raises critical questions about consent and representation, particularly for marginalized communities. Smart emphasizes the importance of transparency and ethics in genetics, pushing for informed discussions on the implications of such decisions.

TikTok has ignited a skincare frenzy among teens, with the 'glass skin' trend leading the way. This multi-step routine promises a flawless glow but may cause irritation and damage to young skin. Dermatologists are concerned as more teens embrace these risky practices. Alongside this cautionary tale, the podcast also dives into the extraordinary swimming feats of two lion brothers facing perilous conditions. Meanwhile, the wonders of distant exoplanets are explored, blending science with engaging anecdotes.

Nell Greenfieldboyce, an NPR science correspondent and ant enthusiast, joins to reveal the fascinating world of ants and their unexpected medical skills. Ants can perform lifesaving amputations on injured nest mates, a practice that may have existed longer than human surgery. Their social support and altruistic behaviors showcase their advanced decision-making and care for one another. The discussion highlights how these tiny creatures exhibit complex survival strategies, including self-amputation, all contributing to the welfare of their colony.

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!