Short Wave

In this discussion, Priya Natarajan, an acclaimed astrophysicist at Yale University and a key figure in exploring black holes, dives into their enigmatic nature. She reveals how supermassive black holes, once shrouded in mystery, are now understood to play a crucial role in galaxy formation. Priya also tackles the mind-boggling concepts of spaghettification and gravitational lensing, offering a unique glimpse into the extreme physics at work. Discover the recent breakthroughs that have revolutionized our understanding of these cosmic giants!

Prepare to rethink your view of leeches! These notorious bloodsuckers aren’t just lurking in the water; they can jump too! Discover the unexpected history of leech use in medicine, including a surprising tale about George Washington. Dive into the diverging habitats and bizarre behaviors of over 800 species, including their carnivorous tendencies. Uncover how observational research in Madagascar is reshaping our understanding of these creatures and contemplate the urgent need to protect biodiversity in a changing climate.

Discover how chimpanzees communicate in ways that closely mirror human interactions, including a fascinating study on their gesture-based turn-taking. Uncover the evolutionary implications of these behaviors and their significance in understanding human language development. The discussion also touches on other intriguing topics, like the mysterious formation of 'dark oxygen' in the ocean and the advances in AI predicting rogue waves. This exploration of primate communication provides a unique perspective on our own social behaviors and interactions.

Sabrina Imbler, an author passionate about marine life, dives deep into the wonders of the ocean and their personal journey as a queer mixed-race individual. They share the mesmerizing behaviors of parrotfish and the emotional story of a mother octopus. The conversation also touches on the remarkable adaptability of cuttlefish and the vibrant life of yeti crabs, drawing parallels to identity and self-expression. This oceanic exploration beautifully intertwines the natural world with personal reflections, inviting listeners to rethink their view of marine species.

Explore how lower gravity and higher radiation in space dramatically alter the human body. Discover the impact of microgravity on eyesight and heart health, and the fascinating twin study that sheds light on human adaptation. Hear about the reactivation of viruses like shingles and the psychological effects of isolation during long missions. Plus, get a glimpse into astronauts' emotional connection to Earth and the technological advancements spurred by their extraordinary experiences in space!

Jon Hamilton, NPR science correspondent and neuroscience expert, dives into the fascinating topic of how the brain cleans itself. He discusses the critical glymphatic system responsible for removing waste during sleep, shedding light on its role in preventing diseases like Alzheimer's. Hamilton reveals groundbreaking research on the effects of a specific 40 hertz sound that stimulates brain cleansing processes. This innovative approach could pave the way for new therapies to enhance brain health and tackle neurological challenges.

Sushmita Pathak, a journalist from Delhi, discusses India's monumental plan to link rivers aimed at addressing extreme flooding and drought. More than a century in the making, this ambitious project could transform water distribution across the country. Pathak sheds light on the potential ecological and societal impacts, as well as the challenges posed by a water mafia that disrupts fair access for farmers. The conversation delves into the pressing need for transparency in data and collaboration with scientists to mitigate unforeseen consequences.

In this engaging discussion, Pien Huang, an NPR science correspondent known for her in-depth exploration of wildlife, illuminates the enchanting world of synchronous fireflies. She shares fascinating insights about their mesmerizing light displays and the mystery behind their synchrony, particularly in Congaree National Park. Pien also addresses the pressing conservation issues facing these magical creatures and encourages community involvement through initiatives like the Firefly Atlas. Join her on a journey that blends science, wonder, and the importance of preserving nature.

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.