Off the Radar

Red light therapy masks are everywhere on social media - glowing, slightly terrifying, and according to influencers, life-changing. But beyond the hype, there's legitimate science here: specific wavelengths of red and near-infrared light can penetrate skin tissue, boost cellular energy production, and potentially speed healing and reduce pain. In this episode, meteorologist Emily Gracey explores the physics behind red light therapy and investigates whether it lives up to its promises. Joining her is Dr. Zakia Rahman, Clinical Professor of Dermatology at Stanford University School of Medicine, who breaks down which benefits have solid research backing them and which claims need more study. They discuss the cellular mechanisms at work, how to use red light responsibly without getting ripped off by overpriced devices, and the critical question: given our history of getting "harmless" light exposure wrong, from X-rays to radium to tanning beds, should we be concerned about long-term effects we don't yet understand? Whether you're curious about adding red light therapy to your routine or just want to understand the science behind the glow, this episode separates evidence from marketing in the booming world of light-based wellness.

In the 1930s, the Great Plains transformed from a land of promise into an apocalyptic landscape of suffocating dust storms. For nearly a decade, massive black clouds swept across 150,000 square miles of Oklahoma, Kansas, Texas, Colorado, and New Mexico, turning day into night and forcing families to abandon their homes. Dust storms lasted for days at a time, reducing visibility to zero. People coughed up clumps of earth and developed "dust pneumonia," while livestock died with inches of dirt lining their digestive tracts. But how did this happen? And more importantly, could it happen again? We speak with Dr. Jeff Lee of Texas Tech University and Dr. Thomas Gill of the University of Texas at El Paso to explore the causes of this catastrophic period in American history, how the Dust Bowl reshaped the nation, and what vulnerabilities we still face today.

Here's a special message from OTR host, Emily Gracey.

Dr. David Beuther, a pulmonologist, reveals how climate change is creating a quiet respiratory health crisis - one where patients with lung disease are increasingly trapped indoors by poor air quality. In this conversation, we explore the growing impact wildfire smoke, extended pollen seasons, and shifting weather patterns are having on our ability to breathe. Dr. Beuther shares practical strategies for protecting lung health, from choosing the right air filters to understanding air quality forecasts, and discusses how he advises patients about the connection between climate change and their symptoms. This isn't a distant environmental threat; it's happening now, in doctors' offices and homes across the country, affecting millions of people who just want to take a breath of fresh air.

In January 2025, astronomers mistook Elon Musk's space-launched Tesla Roadster for a asteroid. It took seventeen hours to realize the "near-Earth object" was actually a seven-year-old sports car orbiting the Sun. We're losing track of what we've sent into space. This week, Emily sits down with Dr. Jonathan McDowell, an astrophysicist at the Harvard-Smithsonian Center for Astrophysics who has tracked every rocket and satellite launched since the 1940s. A decade ago, there were 1,000 satellites in orbit. Now there are 12,000. In ten years, we could hit 100,000. Dr. McDowell explains what happens when these objects die: atmospheric burn-up, ocean crashes, graveyard orbits, or trajectories into solar orbit. He discusses why our regulations—rooted in the 1967 Outer Space Treaty—can't keep pace with mega-constellations, and why we need international cooperation and updated policies. We explore the real risks: collision probabilities in crowded orbits, the environmental impact of using our atmosphere as an incinerator, and public safety concerns around uncontrolled reentries. Dr. McDowell shares his vision for sustainable space practices, including an orbital "recycling plant." The space debris dilemma isn't just about what's up there—it's about what comes back down, and whether we're ready for it.