KGNU - How On Earth

Updated: 02 Dec 2025 • 744 episodes
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The KGNU Science Show

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Critical Earth Minerals  Hiding in Plain Site – Colorado School of Mines professor Elizabeth Holley shares  how the US could break its dependency on critical earth mineral imports, and lead the world in environmentally safe ways to do it. Show Producer/Host/Engineer: Shelley Schlender Executive Producer: Beth Bennett

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Great Steam . . . from a Heat Pump (starts 1:00)  Time Magazine named CSU Engineer Todd Bandhauer one of 2025’s top climate innovators.   His heat pump makes steam better than fossil fuel steam boilers.  Interview thanks to Rocky Mountain Community Radio and Aspen Public Radio. CU-Boulder at COP30 Climate Conference  (

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The physiology of deciduous trees (start time: 11:09) For many people living in places with four distinct seasons, such as here in Colorado, a favorite pastime at this midpoint in autumn is watching the faded leaves fall from their branches, and listening to the crackling sound while raking up the dried leaves. In this

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Five years ago, Beth spoke with Dr Marc Bubbs about his best-selling hardcover book, PEAK: THE NEW SCIENCE OF ATHLETIC PERFORMANCE. Since then, Bubbs has been on the leading edge of new developments in the physiology and psychology of athletic performance. Bubbs helps athletes and other clients in Canada and England co

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28 Oct 2025 • EN

Into The Unknown (Part 2)

Into The Unknown (starts at 9:05) What do we know about the universe, and how do we know we know it? Conversely, what do we know we don’t know, what don’t we know that we don’t know, and why not? To help us unravel these age-old philosophical questions in the context of current science, our … Continue reading "Into The

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21 Oct 2025 • EN

Into The Unknown (Part 1)

Into The Unknown (starts at 7:57) What do we know about the universe, and how do we know we know it? Conversely, what do we know we don’t know, what don’t we know that we don’t know, and why not? To help us unravel these age-old philosophical questions in the context of current science, our … Continue reading "Into The

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