How On Earth Radio
@howonearthradio.bsky.social
Boulder / Denver's KGNU science shows airs on Tuesday mornings @ 88.5FM and 1390AM. More info and episodes at http://HowOnEarthRadio.org
Are you ready to explore the known, unknown, and possibly unknowable with @profkelsey.bsky.social? We talk about her book Into The Unknown: The Quest to Understand the Mysteries of the Cosmos. Part 1 of the interview aired this week howonearthradio.org/archives/10317
Join us for Part 2 next week.
Join us for Part 2 next week.
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? T…
howonearthradio.org
October 25, 2025 at 9:25 PM
Are you ready to explore the known, unknown, and possibly unknowable with @profkelsey.bsky.social? We talk about her book Into The Unknown: The Quest to Understand the Mysteries of the Cosmos. Part 1 of the interview aired this week howonearthradio.org/archives/10317
Join us for Part 2 next week.
Join us for Part 2 next week.
This week we hear from science journalist Miles O'Brien about breaking in to science journalism, past and current science reporting, public and political views of science, and the value of scientific research. We also look at claims about acetaminophen and autism. howonearthradio.org/archives/10283
Science Journalism with Miles O’Brien // Acetaminophen and Autism
This episode features Miles O’Brien, a science journalist who has been a correspondent for PBS News and CNN. He talks about his experience breaking in to science journalism, past and current …
howonearthradio.org
September 30, 2025 at 3:16 PM
This week we hear from science journalist Miles O'Brien about breaking in to science journalism, past and current science reporting, public and political views of science, and the value of scientific research. We also look at claims about acetaminophen and autism. howonearthradio.org/archives/10283
howonearthradio.org/archives/10122
This week we talk with two climate scientists about 100 Hours to Save America’s Forecasts (wclivestream.com), a marathon event starting May 28, featuring meteorologists and climate scientists from across the US who share their work and show what makes it so vital.
This week we talk with two climate scientists about 100 Hours to Save America’s Forecasts (wclivestream.com), a marathon event starting May 28, featuring meteorologists and climate scientists from across the US who share their work and show what makes it so vital.
Saving Weather Forecasting, Climate Science
Scientists speak out for science (start time: 1:00) The Trump administration has been on a dizzying streak of slashing federal funding for scientific research, and firing thousands of federal scien…
howonearthradio.org
May 28, 2025 at 3:21 AM
howonearthradio.org/archives/10122
This week we talk with two climate scientists about 100 Hours to Save America’s Forecasts (wclivestream.com), a marathon event starting May 28, featuring meteorologists and climate scientists from across the US who share their work and show what makes it so vital.
This week we talk with two climate scientists about 100 Hours to Save America’s Forecasts (wclivestream.com), a marathon event starting May 28, featuring meteorologists and climate scientists from across the US who share their work and show what makes it so vital.
Graduation season! That means it is time for our annual Graduation Special on #KGNU, where we talk to grad students about their thesis work. Part 1 is about spacecraft trajectories, Bell tests, and Level-Set Topology Optimization.
howonearthradio.org/archives/10070
howonearthradio.org/archives/10070
2025 Graduation Special (part 1)
With graduation season upon us, today’s edition of How on Earth is Part 1 of our annual “Graduation Special”. Our guests in the studio today are scientists and engineers who have or will soon recei…
howonearthradio.org
May 7, 2025 at 2:32 PM
Graduation season! That means it is time for our annual Graduation Special on #KGNU, where we talk to grad students about their thesis work. Part 1 is about spacecraft trajectories, Bell tests, and Level-Set Topology Optimization.
howonearthradio.org/archives/10070
howonearthradio.org/archives/10070
Today on How on Earth #KGNU, we talk with Dr. Simone Marchi about #NASA's #LucyMission to the Trojan asteroids. On its way, Lucy has flybys of two main-belt asteroids: Dinkinesh in November 2023 and next on April 20 it will fly by asteroid Donaldjohanson. howonearthradio.org/archives/10036
The Lucy Mission
Our guest today is Dr. Simone Marchi, Institute Scientist in the Solar System Science & Exploration Division at the Boulder office of Southwest Research Institute. Dr. Marchi is the Deputy Prin…
howonearthradio.org
April 15, 2025 at 10:16 PM
Today on How on Earth #KGNU, we talk with Dr. Simone Marchi about #NASA's #LucyMission to the Trojan asteroids. On its way, Lucy has flybys of two main-belt asteroids: Dinkinesh in November 2023 and next on April 20 it will fly by asteroid Donaldjohanson. howonearthradio.org/archives/10036
For this week's episode of How on Earth on KGNU, we share a little foolishness - Professor Angus Gillespie reflects on the history of April Fools' Day, and Dr. Mike Lund (@lowbacca.bsky.social) talks about the tradition of April Fool Astronomy papers.
howonearthradio.org/archives/10019
howonearthradio.org/archives/10019
April Foolish Science
Today is April Fools’ day, when jokes and pranks are played, sometimes among friends and family, sometimes on a more public scale. But why is there such a day for culturally-accepted foolishness? …
howonearthradio.org
April 2, 2025 at 5:24 PM
For this week's episode of How on Earth on KGNU, we share a little foolishness - Professor Angus Gillespie reflects on the history of April Fools' Day, and Dr. Mike Lund (@lowbacca.bsky.social) talks about the tradition of April Fool Astronomy papers.
howonearthradio.org/archives/10019
howonearthradio.org/archives/10019
Our recent show is a look back at some forward-looking science stories from 2024:
* Tom Cech Talks RNA - the catalyst
* Avian Flu
* Artificial Intelligence
* Colorado, the Quantum State
howonearthradio.org/archives/9892
@KGNU
* Tom Cech Talks RNA - the catalyst
* Avian Flu
* Artificial Intelligence
* Colorado, the Quantum State
howonearthradio.org/archives/9892
@KGNU
Science Stories from 2024
We share the How on Earth team’s picks for of science stories of 2024: Tom Cech Talks RNA (starts at 1:56) Avian Flu (starts at 9:33) Artificial Intelligence (starts at 13:13) Colorado, the …
howonearthradio.org
January 5, 2025 at 12:33 AM
Our recent show is a look back at some forward-looking science stories from 2024:
* Tom Cech Talks RNA - the catalyst
* Avian Flu
* Artificial Intelligence
* Colorado, the Quantum State
howonearthradio.org/archives/9892
@KGNU
* Tom Cech Talks RNA - the catalyst
* Avian Flu
* Artificial Intelligence
* Colorado, the Quantum State
howonearthradio.org/archives/9892
@KGNU
"I came away (from #COP16) really empowered, because now I see how scientists have a direct impact on shaping the future of #biodiversity ." ~ Chris Funk @fieldgenomics. Take a listen to our intvw w/ Funk & Liba Pejchar of @ColoradoStateU.@KGNU
howonearthradio.org/archives/9795
howonearthradio.org/archives/9795
COP16 Biodiversity Conference
COP16: Hope & Hurdles (start time: 1:20) On this week’s show, host Susan Moran interviews two conservation biologists at Colorado State University — Chris Funk and Liba Pejchar. Th…
howonearthradio.org
January 5, 2025 at 12:19 AM
"I came away (from #COP16) really empowered, because now I see how scientists have a direct impact on shaping the future of #biodiversity ." ~ Chris Funk @fieldgenomics. Take a listen to our intvw w/ Funk & Liba Pejchar of @ColoradoStateU.@KGNU
howonearthradio.org/archives/9795
howonearthradio.org/archives/9795
"(...although Democrats & Republicans have different views, we (people) believe those views are far different than they actually are." Leaf Van Boven, CU Boulder prof. Hear our intrvw w/ @bovenleaf and @westen_drew on political emotions & actions.@KGNU
howonearthradio.org/archives/9763
howonearthradio.org/archives/9763
Emotions, Beliefs, Politics
Beliefs, Perceptions, Decision-making (start time: 4:37) For many people if feels like our society, and our beliefs, have never been as polarized as they are now. Indeed, we are living in a politi…
howonearthradio.org
January 5, 2025 at 12:19 AM
"(...although Democrats & Republicans have different views, we (people) believe those views are far different than they actually are." Leaf Van Boven, CU Boulder prof. Hear our intrvw w/ @bovenleaf and @westen_drew on political emotions & actions.@KGNU
howonearthradio.org/archives/9763
howonearthradio.org/archives/9763
What's for dinner? And how are our meals affecting and affected by #climatechange? Tune in to this week's show, as host @susan_moran interviews ecologist Mark Easter about his new debut book, The Blue Plate (@patagonia). #soilhealth #soilmicrobes
howonearthradio.org/archives/9735
howonearthradio.org/archives/9735
The Carbon Footprint of Food
The Blue Plate in a Red-hot World (start time: 7:46) While adding cream to your morning cup of coffee, or digesting the hamburger that you grilled last night, you might not have been asking yoursel…
howonearthradio.org
January 5, 2025 at 12:19 AM
What's for dinner? And how are our meals affecting and affected by #climatechange? Tune in to this week's show, as host @susan_moran interviews ecologist Mark Easter about his new debut book, The Blue Plate (@patagonia). #soilhealth #soilmicrobes
howonearthradio.org/archives/9735
howonearthradio.org/archives/9735
Perhaps we should call this week's edition of How on Earth: How on The Moon? We talk with astrophysicist Dr. Jack Burns about the reasons for doing radio astronomy on the Moon, and the past and future missions to do that science.
howonearthradio.org/archives/9680
howonearthradio.org/archives/9680
Science from The Moon
When people talk about going to the Moon, it is often in terms of establishing a station there, or finding water, or doing science about the Moon such as studying moon rocks. But we can do interes…
howonearthradio.org
January 5, 2025 at 12:18 AM
Perhaps we should call this week's edition of How on Earth: How on The Moon? We talk with astrophysicist Dr. Jack Burns about the reasons for doing radio astronomy on the Moon, and the past and future missions to do that science.
howonearthradio.org/archives/9680
howonearthradio.org/archives/9680
Why do animals talk? Do they have languages or just varying "words"? Tune in to @KGNU's science show as we discuss scientific advancements, & listen to wolves, gibbons, etc., w/ zoologist @arikkershenbaum about his new book #WhyAnimals Talk.
rb.gy/abo946
rb.gy/abo946
Why Do Animals Talk?
Animal Communication Science (start time: 2:57) Whether you own a dog or horse, or have listened to dolphins, wolves, chimpanzees or other wild animals, you’ve probably wondered what they’re…
rb.gy
January 5, 2025 at 12:18 AM
Why do animals talk? Do they have languages or just varying "words"? Tune in to @KGNU's science show as we discuss scientific advancements, & listen to wolves, gibbons, etc., w/ zoologist @arikkershenbaum about his new book #WhyAnimals Talk.
rb.gy/abo946
rb.gy/abo946
Why do black-capped chickadees mate w/ mountain chickadees? And how does the sharp memory of these songbirds serve them over winter? Listen to this week's @kgnu science show, with @CUBoulder ecologist @Dr_Scott_Taylor and host @susan_moran. #chickadees
howonearthradio.org/archives/9639
howonearthradio.org/archives/9639
Curious Patterns of Chickadees
Clever Chickadees on the Front Range (start time: 4:20) Many of us wake up these days to a chorus of songbirds, including mountain and black-capped chickadees. Host Susan Moran interviews Scott Tay…
howonearthradio.org
January 5, 2025 at 12:18 AM
Why do black-capped chickadees mate w/ mountain chickadees? And how does the sharp memory of these songbirds serve them over winter? Listen to this week's @kgnu science show, with @CUBoulder ecologist @Dr_Scott_Taylor and host @susan_moran. #chickadees
howonearthradio.org/archives/9639
howonearthradio.org/archives/9639
In this week's episode, we talk with Rebecca Boyle @rboyle31 about her new book: Our Moon. We discuss how the Moon has impacted so many aspects of our lives: philosophy and religion, art and science, sense of time, and evolution of life.
howonearthradio.org/archives/9612
howonearthradio.org/archives/9612
Our Moon
In this episode, we talk with journalist and author Rebecca Boyle about her book Our Moon – How Earth’s Celestial Companion Transformed the Planet, Guided Evolution, and Made Us Who We Are. W…
howonearthradio.org
January 5, 2025 at 12:18 AM
In this week's episode, we talk with Rebecca Boyle @rboyle31 about her new book: Our Moon. We discuss how the Moon has impacted so many aspects of our lives: philosophy and religion, art and science, sense of time, and evolution of life.
howonearthradio.org/archives/9612
howonearthradio.org/archives/9612
Confused by misleading "compostable" product labels? Tune in to our @kgnu science show to learn about a new truth-in-labeling CO law and other efforts to reduce landfill #methaneemissions, w/ Dan Matsch of @ecocycle & Nora Goldstein of @BioCycleMag.
howonearthradio.org/archives/9604
howonearthradio.org/archives/9604
“Compostable” Product Truths & Lies
Making “Compostable” Products Truly Compostable (start time: 0:56) You’ve probably wracked your brain at some point trying to figure out whether the compostable-labelled clamshell or t…
howonearthradio.org
January 5, 2025 at 12:18 AM
Confused by misleading "compostable" product labels? Tune in to our @kgnu science show to learn about a new truth-in-labeling CO law and other efforts to reduce landfill #methaneemissions, w/ Dan Matsch of @ecocycle & Nora Goldstein of @BioCycleMag.
howonearthradio.org/archives/9604
howonearthradio.org/archives/9604
Want to know more of the dirt on #composting -- e.g. its climate, ecological and human health benefits-- & challenges to getting more methane out of #landfills by having cities and the U.S. compost more? Check out this week's @KGNU science show/podcast. #GHGemissions
January 5, 2025 at 12:18 AM
Want to know more of the dirt on #composting -- e.g. its climate, ecological and human health benefits-- & challenges to getting more methane out of #landfills by having cities and the U.S. compost more? Check out this week's @KGNU science show/podcast. #GHGemissions
Wondering which songbirds are waking you up each spring morning? And how you can give birds and their dwindling habitats a leg up? Tune in to this week's @KGNU science show with host @susan_moran ; Terri Schulz of @Nature_Colorado; & naturalist Dave Sutherland. #birdwatching
January 5, 2025 at 12:18 AM
Wondering which songbirds are waking you up each spring morning? And how you can give birds and their dwindling habitats a leg up? Tune in to this week's @KGNU science show with host @susan_moran ; Terri Schulz of @Nature_Colorado; & naturalist Dave Sutherland. #birdwatching
Are you ready for the solar eclipse on April 8? On the recent edition of @KGNU's How On Earth, hear about where to see it, how to watch and photograph safely, historical eclipses, and how these things work. Our guests are Dr. Doug Duncan and @dhbaron.
howonearthradio.org/archives/9473
howonearthradio.org/archives/9473
Solar Eclipse 2024!
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 Dire…
howonearthradio.org
January 5, 2025 at 12:18 AM
Are you ready for the solar eclipse on April 8? On the recent edition of @KGNU's How On Earth, hear about where to see it, how to watch and photograph safely, historical eclipses, and how these things work. Our guests are Dr. Doug Duncan and @dhbaron.
howonearthradio.org/archives/9473
howonearthradio.org/archives/9473
On a new deal giving endangered fish and farmers a leg up, and tensions between Upper and Lower Basin states, tune in to this week's science show and podcast, with @LukeRunyon & @awhager. @KUNC @TheWaterDesk @KGNU #climatechange
howonearthradio.org/archives/9466
howonearthradio.org/archives/9466
Colorado River: new deals, old tensions
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 pol…
howonearthradio.org
January 5, 2025 at 12:18 AM
On a new deal giving endangered fish and farmers a leg up, and tensions between Upper and Lower Basin states, tune in to this week's science show and podcast, with @LukeRunyon & @awhager. @KUNC @TheWaterDesk @KGNU #climatechange
howonearthradio.org/archives/9466
howonearthradio.org/archives/9466
On the discovery of the largest deep-sea coral reef, and the risks of seabed mining, tune in to today's @KGNU science show/podcast. Journalist @karadaniellefox interviews Kasey Cantwell @CoralReef_KC @NOAA ; & @farahyasmin of The Ocean and Us.
howonearthradio.org/archives/9428
howonearthradio.org/archives/9428
Deep-sea Coral Reefs // Mineral-Mining
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. I…
howonearthradio.org
January 5, 2025 at 12:18 AM
On the discovery of the largest deep-sea coral reef, and the risks of seabed mining, tune in to today's @KGNU science show/podcast. Journalist @karadaniellefox interviews Kasey Cantwell @CoralReef_KC @NOAA ; & @farahyasmin of The Ocean and Us.
howonearthradio.org/archives/9428
howonearthradio.org/archives/9428
Air pollution, environmental toxins can wreak havoc on maternal and infant health, as CU Boulder integrative physiologist @tanya_alderete, Zach Morgan, and journalist @karadaniellefox discussed in our @KGNU science show this week. Tune in and download the podcast.
January 5, 2025 at 12:18 AM
Air pollution, environmental toxins can wreak havoc on maternal and infant health, as CU Boulder integrative physiologist @tanya_alderete, Zach Morgan, and journalist @karadaniellefox discussed in our @KGNU science show this week. Tune in and download the podcast.
Learning #STEM by tasting, touching, not just viewing models? Here from experts in accessibility for the blind, etc. -- @hobywedler & Brett Fiedler of CU Boulder's @PhETsims on this week's science show.@KGNU #STEMeducation
howonearthradio.org/archives/9330
howonearthradio.org/archives/9330
STEM Ed: Improving access for the blind, etc.
STEM ed accessibility (start time: 2:03): It’s challenging enough learning science, technology, engineering and math when you can clearly see the physical models or images of neurons on a screen. …
howonearthradio.org
January 5, 2025 at 12:18 AM
Learning #STEM by tasting, touching, not just viewing models? Here from experts in accessibility for the blind, etc. -- @hobywedler & Brett Fiedler of CU Boulder's @PhETsims on this week's science show.@KGNU #STEMeducation
howonearthradio.org/archives/9330
howonearthradio.org/archives/9330
On this week's @KGNU science show we zoomed in on #COP28 -- pledges, progress, shortfalls, etc. -- w/ host @susan_moran and guests, @EnvDefenseFund scientist @alicealpert & journalist @yulsman. Listen here and download the podcast:#climatechange #GHG
howonearthradio.org/archives/9313
howonearthradio.org/archives/9313
COP28 Climate Summit: Pledges & Realities
Climate Change & COP28 (start time: 1:30) A major global climate conference is taking place now in Dubai, amidst a year of record-breaking heat, wildfires, floods and more around the world. CO…
howonearthradio.org
January 5, 2025 at 12:18 AM
On this week's @KGNU science show we zoomed in on #COP28 -- pledges, progress, shortfalls, etc. -- w/ host @susan_moran and guests, @EnvDefenseFund scientist @alicealpert & journalist @yulsman. Listen here and download the podcast:#climatechange #GHG
howonearthradio.org/archives/9313
howonearthradio.org/archives/9313
For a deeper understanding of #COP28, GHG emissions, reductions pledges and realities, tune in to our science show at 8:30a MDT --with guests @alicealpert of @EnvDefenseFund, and climate journalist @yulsman, w/ host @susan_moran. @KGNU
kgnu.org
kgnu.org
KGNU Community Radio
kgnu.org
January 5, 2025 at 12:18 AM
For the scoop on poop--from #Sewage's potential to tackle huge environmental & public health challenges, e.g., #drinkingwater scarcity and cropland degradation, listen to our interview with @SeattleBryn about his book Flush (just out in paperback). @kgnu
howonearthradio.org/archives/9287
howonearthradio.org/archives/9287
From Sewage to Planet Savior?
The Power of Poop (start time: 5:41) This potent byproduct of our digestive system holds the promise of being a big part of the solution to several public health and environmental challenges of ou…
howonearthradio.org
January 5, 2025 at 12:18 AM
For the scoop on poop--from #Sewage's potential to tackle huge environmental & public health challenges, e.g., #drinkingwater scarcity and cropland degradation, listen to our interview with @SeattleBryn about his book Flush (just out in paperback). @kgnu
howonearthradio.org/archives/9287
howonearthradio.org/archives/9287