The G-word
Is geoengineering the answer to the climate crisis? Or is it too dangerous to even discuss? It’s been theoretical so far, but now, one startup says their technology could soon shield the Earth from th...
7 Jan 26min
Who's afraid of big, bad Yellowstone?
Yellowstone can be a deadly place... but not for the reasons you might think. Guest: Mike Poland, scientist in charge at the Yellowstone Volcano Observatory For show transcripts, go to ...
5 Jan 23min
Vitamin C and the common cold
A two-time Nobel Prize-winning scientist changed chemistry, biology, and the politics of science. But when he pushed vitamin C as a cure-all, did he go too far? Guest: Daniel M. Davis, head of the...
17 Dec 202532min
Your moments of silence (The Sound Barrier #5)
This episode is a follow-up to The Sound Barrier series, which explores our brain's relationship to sound. In our third episode of the series, we asked listeners to try to experience silence and recor...
15 Dec 202531min
Diary of a teenage brain, part 2
As our brains develop throughout our childhood and teens, they form connections and then prune back the ones that aren't used. What can we learn from them? Guests: Alison Barth, professor in the life...
10 Dec 202527min
Diary of a teenage brain
What's going on in teens' heads? Scientists working on a country-wide study following thousands of young people have spent the last decade trying to answer that question. Guests: Raul Gonzalez Jr....
8 Dec 202528min
The trees of death
Way back when forests first evolved on Earth... they might have triggered one of the biggest mass extinctions in the history of the planet. (Originally aired in 2024) Guests: Charles Ver Straeten, ...
3 Dec 202526min
That's no moon...
It's a quasi-moon. Or, a quasi-satellite. Whatever you want to call it, it's hanging out near Earth. And it could be the source of some fascinating new science. Guests: Nick Moskovitz, astronomer a...
1 Dec 202521min
