Episode Details

A new study reveals how Antarctic meltwater dramatically disrupted the global ocean conveyor belt during past ice ages — and what that means for today's melting ice. Ancient carvings are forcing scientists to push the origin of writing back by tens of thousands of years, rewriting what we know about early human cognition. Researchers have engineered living bacteria to invade tumors and destroy cancer from the inside out, using a clever biological switch that targets tumor cores. A shocking new finding shows that microplastics were detected in 9 out of 10 prostate cancer tumors — and at far higher concentrations in cancerous tissue. From a universal nasal vaccine that protects against multiple respiratory diseases at once to a protein that may be the key to slowing neurodegenerative disease, this episode covers the science stories reshaping our understanding of health, history, and the universe.

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