The KGNU Science Show
In this episode of How on Earth, we talk about the upcoming 2024 April 8th solar eclipse. Our guests are science writer David Baron, author of American Eclipse, and Dr. Doug Duncan, served as Director of the University of Colorado Boulder’s Fiske Planetarium.
Show Producer and Host: Joel Parker
Executive Producer: Shelley Schlender
Listen to the show:
Podcast: Play in new window | Download (Duration: 27:00 — 37.1MB)
Subscribe: RSS
Colorado River: Promise and Peril (start time: 6:28) For more than two decades the Colorado River has been shrinking, afflicted by climate change-induced drought, population growth, and water politics. Some 40 million people living in seven states, and 30 tribes, depend on the river. The Upper Basin — Colorado, Utah, Wyoming and New Mexico– have been at odds with Lower Basin states – California, Nevada and Arizona — over who should do more to cut back on water use. Meanwhile, here in Colorado, cities and towns on the Front Range have been clashing with those on the Western Slope over water from the river. After all, Front Range cities get almost half of their water from the Western Slope, through transmountain diversions. In this week’s show, host Susan Moran interviews two journalists who have been covering water issues in the West. They recently produced a feature on a surprising new water-rights purchase that could ease west-vs-east tensions, while giving endangered fish a leg up. Alex Hager is a reporter covering the Colorado River Basin for KUNC and many NPR network stations. Luke Runyon is co-director of The Water Desk, an initiative of the Center for Environmental Journalism at CU Boulder. Previously he was managing editor and a reporter at KUNC.
Host/Producer: Susan Moran
Engineer: Sam Fuqua
Headline contributors: Joel Parker, Shelley Schlender
Executive Producer: Joel Parker
Listen to the show here:
Podcast: Play in new window | Download (Duration: 29:06 — 40.0MB)
Subscribe: RSS
This is the third and final episode of a series where we hear about recent research presented at the American Astronomical Society (AAS) January 2024 meeting.
Habitable Worlds Observatory (starts at 5:15) Dr. Megan Ansdell, Program Scientist at NASA Headquarters in the Astrophysics Division and the Planetary Science Division, talks about the Habitable Worlds Observatory, a proposed mission for a large ultraviolet, optical, infrared space telescope.
Impostor Phenomenon (starts at 14:28) Jennifer Bates, a licensed clinical social worker, the Broadening Participation Program manager at the National Radio Astronomy Observatory, and the project lead for the Radio Astronomy Data Imaging and Analysis Lab discusses Imposter Phenomenon and how it affects science researchers.
Executive Producer: Joel Parker
Show Producer and Host: Joel Parker
Additional Contributions: Shelley Schlender
Listen to the show:
Podcast: Play in new window | Download (Duration: 27:00 — 37.1MB)
Subscribe: RSS
In this Spring Pledge Drive show, we talk with CU-Boulder professor and behavioral economist Peter McGraw about his new book, Solo: Building a Remarkable Life of your own. The book is also available through KGNU for listeners who give a donation to support this non-commercial, community radio station.
Executive Producer: Joel Parker
Show Producer/Engineer: Shelley Schlender
Hosts: Shelley Schlender/Susan Moran
Podcast: Play in new window | Download (Duration: 28:15 — 32.3MB)
Subscribe: RSS
This is the second episode of a series where we hear about recent research presented at the American Astronomical Society (AAS) January 2024 meeting.
3D Astronomy (starts at 3:08) Dr. Nicole Karnath, Research Scientist, at Space Science Institute, talks about using the Hubble Space Telescope and the airborne SOFIA telescope to explore the wondrous 3D world of protostellar shocks.
AI in Astrophysics (starts at 17:38) Dr. Megan Ansdell, Program Scientist at 
NASA Headquarters in the Astrophysics Division and the Planetary Science Division, talks about using artificial intelligence and machine learning in astrophysics research, and how AI/ML can be applied to large datasets, and the example of data that will come from the Nancy Grace Roman Space Telescope.
Executive Producer: Joel Parker
Show Producer and Host: Joel Parker
Listen to the show:
Podcast: Play in new window | Download (Duration: 27:00 — 37.1MB)
Subscribe: RSS
This week’s How On Earth offers two features:
Deep-sea coral reef discovery (start time: 0:58) Scientists recently discovered and mapped the largest known deep-sea coral reef in the world. It’s located up to 200 miles off the U.S. Atlantic Coast, and it’s larger than Vermont. The news comes as a bright spot for oceans and marine life, when ocean acidification related to global warming, as well as overfishing, have been destroying coral reefs around the world. Contributing host Kara Fox interviews Kasey Cantwell, the operations chief for the Expeditions and Exploration Division of the National Oceanic and Atmospheric Administration, about the big discovery and its implications.
Deep-sea mining: promises and perils (start time: 10:48) Exploratory mining of the ocean floor for minerals began decades ago. Although commercialization remains elusive, some some companies are moving rapidly to exploit the seabed for commercial use. They aim to harness critical minerals – manganese, nickel, copper, cobalt and others – for use in the production of electric vehicle batteries, cell phones, wind turbines, etc. Some scientists, environmentalists, a regulatory body, and even some auto and tech companies, have called for at least a temporary ban on seabed mining, out of concern about its impact on marine life. Host Kara Fox interviews Farah Obaidullah, founder of the conservation group The Ocean and Us, and editor of a book of the same name, about seabed mining.
Hosts/Producers: Kara Fox, Susan Moran
Engineer: Sam Fuqua
Executive Producer: Joel Parker
Listen to the show here:
Podcast: Play in new window | Download (Duration: 26:19 — 30.1MB)
Subscribe: RSS
In this week’s show Beth speaks with author Annabel Abbs-Streets about her new book, SLEEPLESS: Unleashing the Subversive Power of the Night Self, in which she dives into both the science of sleep and sleeplessness, and a new perspective on life after midnight.
Executive Producer: Joel Parker
Show Producer: Beth Bennett
Listen to the show:
Podcast: Play in new window | Download (Duration: 26:43 — 21.5MB)
Subscribe: RSS
This week on How on Earth Beth speaks with Mattie Matsch, deputy director of Boulder’s Eco-Cycle. We spoke about the challenges of recycling plastics. As consumers, it’s vital to be aware of these challenges and the limitations they impose on the types of plastic we can toss in the barrel for pickup.
Executive Producer: Joel Parker
Show Producer: Beth Bennett
Engineer: Sam Fuqua
Listen to the Show:
Podcast: Play in new window | Download (Duration: 27:22 — 30.5MB)
Subscribe: RSS
Boulder native and wildlife photographer John Weller talks about his efforts to save The Ross Sea in Antarctica. The Ross Sea is the world’s largest Marine Protected Area. Weller’s photobooks and documentary films have been a big part of explaining why this area is special, and why protecting it is a crucial part of restoring health of all world oceans. This show also includes John Weller on a hike with Boulder Naturalist Steve Jones and the Boulder Audubon Teen Naturalists, and discussion about why recent CU-Bouldeer research about rising carbon dioxide, and how it increases ocean acidity warns of disaster ahead the small shrimp-like krill at the bottom of the food chain, as well as for whales, penguins . . . and people . . . at the food chain’s top.
Host/Producer: Shelley Schlender
Executive Producer: Joel Parker
Podcast: Play in new window | Download (Duration: 26:58 — 37.1MB)
Subscribe: RSS
This week’s How On Earth features the following:
How Environmental Toxins Harm Maternal Health (start time: 1:30)
Being exposed to wildfires and other forms of air pollution can wreak havoc on anyone’s health. If you’re pregnant, or socioeconomically disadvantaged, you are particularly susceptible to the negative effects of airborne contaminants. How On Earth’s Susan Moran, and contributing host Kara Fox discuss these issues with our guests: Dr. Tanya Alderete, an assistant professor of integrative physiology at CU Boulder; and Zach Morgan, who earned his masters degree last year in integrative physiology at CU Boulder. He was the lead author on a 2023 study (with senior author Dr. Alderete and others) on how air pollution impairs brain development in infants and toddlers.
(Dr. Alderete and colleagues are seeking participants living in Boulder or Denver in a new study of how plastic exposure might affect the physical health of mothers and their infants. Read this screening survey.)
Hosts/Producers: Kara Fox, Susan Moran
Executive Producer/Engineer: Joel Parker
Listen to the show here:
Podcast: Play in new window | Download (Duration: 27:17 — 37.5MB)
Subscribe: RSS
