
Short Wave
New discoveries, everyday mysteries, and the science behind the headlines — in just under 15 minutes. It's science for everyone, using a lot of creativity and a little humor. Join hosts Emily Kwong and Regina Barber for science on a different wavelength.If you're hooked, try Short Wave Plus. Your subscription supports the show and unlocks a sponsor-free feed. Learn more at plus.npr.org/shortwave
Latest episodes

8 snips
Apr 11, 2025 • 13min
How Do Astronomers Find Exoplanets? Wiggles!
In this engaging conversation, astronomer Josh Wynn from Princeton University shares insights as an exoplanet hunter. He explains how astronomers detect distant planets by observing the subtle 'wiggles' of stars. Learn about the Doppler effect and the astrometric technique used to unveil these celestial bodies. Josh highlights the groundbreaking work of the GAIA telescope, revealing how its data enhances our understanding of exoplanetary systems. Excitement builds for future discoveries in the ever-expanding universe!

21 snips
Apr 9, 2025 • 13min
Could Psychedelics Become Tripless?
Rachel Carlson, a dedicated producer and reporter on psychedelic science, dives into the fascinating world of non-hallucinogenic alternatives to traditional psychedelics. She discusses groundbreaking research on modifying these compounds to retain their therapeutic benefits while eliminating hallucinatory experiences. The conversation explores innovative treatments, such as 'psychoplastogens' and the promising drug DLX1 aimed at tackling conditions like depression. Carlson also highlights the ongoing debates on the necessity of trips in psychedelic therapy, offering a glimpse into the future of mental health treatment.

9 snips
Apr 8, 2025 • 12min
What If You Took The "Trip" Out Of Ketamine?
In this fascinating discussion, Rachel Carlson, a producer at NPR known for her series on psychedelics, dives into the cutting-edge research on ketamine. She explores the possibility of achieving therapeutic benefits without the psychedelic experience. A notable study involving anesthesia raises questions about the interplay of drug effects and psychological context. The conversation highlights personal testimonials and the role of the placebo effect, setting the stage for innovations in mental health treatments.

16 snips
Apr 7, 2025 • 12min
Why The Trip Complicates Psychedelic Research
Rachel Carlson, a producer with a keen interest in psychedelic science, discusses the intriguing world of psychedelics and their potential therapeutic benefits. She highlights the challenges researchers face in distinguishing the effects of psychedelics from the personal transformations experienced during trips. The conversation reveals how environmental factors play a crucial role in these studies and underscores the need to understand the mechanisms at play—vital for guiding the future direction of research into these fascinating substances.

39 snips
Apr 4, 2025 • 8min
Could Running Change Your Brain?
A neuroscientist reveals that marathon running may temporarily deplete myelin in the brain, potentially impacting neural function. This fascinating research could pave the way for new treatments for neurological issues. Meanwhile, astronauts experiment with fermenting miso in space, discovering unique flavor changes upon return to Earth. Additionally, the incredible echolocation abilities of bats are explored, showcasing their advanced navigation skills that could inspire future technology in robotics. All this illustrates the delightfully diverse intersections of science!

16 snips
Apr 2, 2025 • 11min
Tornado Alley: Home Of Extreme Winds
Freelance science journalist Sushmita Pathak, an expert on tornado geography, joins guest host Berly McCoy to discuss Tornado Alley, home to around 1,200 tornadoes each year. They dive into why this region sees so many more tornadoes than other parts of the world, attributing it to geographical factors. Pathak contrasts conditions in Central South America, revealing intriguing disparities. The duo also examines the impact of climate change on tornado activity, highlighting the complexity of environmental influences beyond just increasing temperatures.

12 snips
Apr 1, 2025 • 9min
The Iguanas That Rafted To Fiji
Jonathan Lambert, NPR reporter with a focus on evolutionary biology, dives into the astonishing story of how Fijian iguanas made their way nearly 5,000 miles across the ocean. The discussion reveals that these creatures might have traveled on floating tree clumps, a phenomenon observed after hurricanes in the Caribbean. Lambert shares insights from recent studies that counter conventional theories, highlighting the impact of rare events on evolutionary paths and the challenges scientists face in piecing together the iguanas' fascinating history.

46 snips
Mar 31, 2025 • 13min
Is AI Ready For Robots?
Geoff Brumfiel, an NPR science editor and correspondent, shares insights from his visit to Stanford's IRIS lab, where cutting-edge AI is transforming robotics. He discusses how AI is set to revolutionize robots, moving from concept to real-world applications. Brumfiel highlights notable advancements, like teachable neural networks, allowing robots to learn through experience. The episode also dives into the challenges of training robots versus chatbots and explores both the optimism and hurdles in achieving greater autonomy in robotic technology.

Mar 28, 2025 • 12min
Rare Narwhal Footage Shows New Tusk Activities
Nell Greenfieldboyce, NPR's science correspondent, dives into the enigmatic world of narwhals and their fascinating tusks. She discusses rare drone footage that has revealed new tusk activities, including their roles in social behaviors and hunting techniques. Personal stories from an Inuit community add depth to the conversation. Nell also highlights the challenges researchers face studying these elusive creatures and the implications of climate change on their habitat. Join her as she unveils the mysteries of the 'unicorn of the sea'!

13 snips
Mar 26, 2025 • 14min
The Algae That Thrive in Arctic Darkness
Clara Hoppe, a biogeochemist at the Alfred Wegener Institute, dives into the fascinating world of Arctic microalgae. She reveals how these tiny organisms defy expectations during the extended darkness of winter, managing to photosynthesize and thrive. Clara shares insights from her research expeditions in the Svalbard Archipelago, illustrating their remarkable resilience and survival strategies. The discussion sheds light on how these microorganisms adapt to extreme conditions, reshaping our understanding of the Arctic ecosystem.
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