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What do people eat? Plant and animal DNA in sewage provide clues
DNA signatures of plant and animal species remain behind even after they’ve been eaten, digested, excreted, and flushed down the toilet.
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A Nagasaki survivor and physician recounts his life’s work
Dr. Masao Tomonaga was 2 when Nagasaki was bombed. In August 2025, he spoke with Ira Flatow about a lifetime caring for fellow survivors.
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What do people eat? Plant and animal DNA in sewage provide clues
DNA signatures of plant and animal species remain behind even after they’ve been eaten, digested, excreted, and flushed down the toilet.
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3D images of galaxies will rock you (ft. Queen)
In March 2026, astronomer and Queen guitarist Brian May and astrophysicist Derek Ward-Thompson discussed how they brought the cosmos to 3D.
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The evolution of an enzyme engineer who changed chemistry
In a March 2026 story, Frances Arnold discusses her technique of “directed evolution” that creates enzymes with unusual abilities.