First up this week, News Intern Rodrigo Pérez-Ortega talks with host Meagan Cantwell about an oasis of biodiversity in the striking blue pools of Cuatro Ciénegas, a basin in northern Mexico. Researchers have published dozens of papers exploring the unique microorganisms that thrive in this area, while at the same time fighting large agricultural industries draining the precious water from the pools.
David Tatnell, a postgraduate researcher at the University of Exeter, talks with host Sarah Crespi about using heat to make sound, a phenomenon known as thermoacoustics. Just like the sound of fire or thunder, sudden changes in temperature can create sound waves. In his team’s paper in Science Advances, Tatnell and colleagues describe a thermoacoustic speaker that uses thin, heated films to make sound. This approach cuts out the crosstalk seen in mechanical speakers and allows for extreme miniaturization of sound production. In the ultrasound range, arrays of thermoacoustic speakers could improve acoustic levitation and ultrasound imaging. In the hearing range, the speakers could be made extremely small, flexible, and even transparent.
On this week’s podcast, how the molecular structure of tooth enamel may impact decay, adhesive patches to heal heart attacks, and a mysterious planetary core from a half-formed gas giant.
We take a look back over the past six months of the pandemic, and discuss how far the world has come. It’s been a period of turmoil and science has faced an unprecedented challenge. What lessons can be learned from the epidemic so far to continue the fight in the months to come?
Senior Correspondent Jeffrey Mervis joins host Sarah Crespi to talk about how universities are dealing with the financial crunch brought on by the coronavirus. Jeff discusses how big research universities are balancing their budgets as federal grants continue to flow, but endowments are down and so is the promise of state funding.
Staff Writer Kelly Servick joins host Sarah Crespi to talk about the ins and outs of coronavirus contact tracing apps—what they do, how they work, and how to calculate whether they are crushing the curve. 
This week, the spaceborne lab that allows investigation of quantum states, and the debate surrounding how mountain height is maintained.
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