

Short Wave
NPR
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
Episodes
Mentioned books

Dec 16, 2022 • 12min
The Hope For Slowing Amazon Deforestation
In this engaging discussion, NPR reporter Kirk Siegler, known for his insightful coverage of environmental issues, shares his journey to a remote Amazonian research station. He highlights the alarming effects of deforestation on biodiversity and climate. With Brazil's new leadership, there's renewed optimism for conservation, yet challenges remain. Siegler discusses the interplay between local community well-being and sustainable practices. Despite the daunting circumstances, he captures the hope and enthusiasm among younger researchers fighting for the Amazon's future.

Dec 15, 2022 • 8min
A Step Closer To Nuclear Fusion Energy
Researchers at Lawrence Livermore National Laboratory have made a groundbreaking leap in nuclear fusion by achieving a net energy gain for the first time. They used powerful lasers to ignite a tiny hydrogen pellet, generating more energy than consumed. This milestone has been pursued for over fifty years and brings us closer to the promise of clean energy. However, significant challenges remain before fusion can become a practical energy source. The potential impact of this technology on the future of energy production is immense.

Dec 14, 2022 • 12min
From Scientific Exile To Gene Editing Pioneer
Lydia Villa-Komaroff, a molecular biologist renowned for her groundbreaking work in gene editing, shares her inspiring journey from exile to innovation. She recounts the controversies surrounding recombinant DNA research in the 1970s, facing public fears and political obstacles. Lydia highlights her breakthrough in getting bacteria to produce insulin, revolutionizing diabetes treatment. She emphasizes the vital role of effective science communication to foster public trust and encourages the integration of science education into society.

5 snips
Dec 13, 2022 • 14min
You Know That Gut Feeling You Have?...
Have you ever felt butterflies in your stomach? This podcast explores the fascinating connection between your gut and brain. From the evolutionary journey of the gut to the communication pathways that influence our emotions, the discussion dives deep into how gut health ties to mental health conditions like anxiety and autism. Research revealing gut bacteria's surprising role in neurological diseases such as Parkinson's adds another layer. Get ready to rethink the impact of your diet on your overall health!

10 snips
Dec 12, 2022 • 14min
The Myth of Plastic Recycling
Laura Sullivan, NPR News investigative correspondent, reveals the surprising truths about plastic recycling. Despite its popularity, she uncovers that less than 6% of plastic is effectively reprocessed, largely due to challenges in sorting and the complex chemistry of plastics. Sullivan highlights the oil and gas industry's role in shaping public perceptions and critiques the misplaced responsibility placed on individuals. Ultimately, she advocates for reusable alternatives as a more effective solution to our environmental challenges.

Dec 9, 2022 • 14min
DART: The Impacts Of Slamming A Spacecraft Into An Asteroid
Cristina Thomas, an Assistant Professor of Astronomy and Planetary Science at Northern Arizona University, shares insights on NASA's DART mission. The podcast dives into how this innovative program successfully altered an asteroid's trajectory by crashing a spacecraft into it. Cristina reassures that there are no immediate threats from large asteroids while highlighting the mission's significance for planetary defense. She also discusses global collaboration in asteroid detection and the excitement surrounding future efforts to protect Earth.

Dec 8, 2022 • 15min
The Biologist Who Talks With Cells
Dr. Sandra Murray, a cell biology professor at the University of Pittsburgh and the first person of color to lead the American Society for Cell Biology, shares her insights on how over 30 trillion cells communicate without brains. She explores the intricate language of cellular messaging during critical processes like wound healing and childbirth. Murray also opens up about her journey as a Black woman in STEM, the challenges she faced, and the importance of representation in science. Her passion for both art and science shines through her work in microscopy.

4 snips
Dec 7, 2022 • 12min
What Makes Hawaii's Erupting Volcanoes Special
In this engaging discussion, volcanologist Alison Graettinger, from the University of Missouri, Kansas City, shares her expertise on Hawaii's volcanoes. She dives into the remarkable recent eruption of Mauna Loa, highlighting its unique geological features. Graettinger explains the simultaneous eruptions of Mauna Loa and Kilauea and what they reveal about deep Earth processes. Moreover, she discusses the sophisticated monitoring systems predicting these eruptions and how they help us understand the Earth's inner workings.

Dec 6, 2022 • 12min
'One Mississippi...' How Lightning Shapes The Climate
Evan Gora, a forest ecologist specializing in the impact of lightning on tropical forests, shares his groundbreaking research on this fascinating topic. He reveals how lightning can silently kill trees, often months after a strike, complicating our understanding of its ecological role. Gora debunks myths surrounding lightning's destructive nature and discusses its surprising importance in climate change. He also emphasizes the need for resilient tree species in reforestation efforts, mixing awe and respect for lightning's power with hope for the future.

Dec 5, 2022 • 12min
Don't Call It Dirt: The Science Of Soil
Asmeret Asefaw Berhe, a soil scientist at UC-Merced and Director at the U.S. Department of Energy's Office of Science, passionately discusses the often-overlooked importance of soil. She cautions against calling it 'dirt' and emphasizes its role in supporting life. Berhe reveals how degraded soil impacts climate change, urging listeners to recognize its potential for carbon storage. She also shares innovative strategies for enhancing soil health, like tree planting and biochar, highlighting the urgent need for tailored solutions to protect this vital ecosystem.