🔬 Wireless Chip Restores Vision, Brain's Hidden Alzheimer's Defense Just Found, and What's Really Buried 1,800 Miles Inside Earth

Today's episode covers groundbreaking medical advances including a wireless retinal implant helping AMD patients read again and a newly discovered protein that activates the brain's natural cleaning system against Alzheimer's plaques. We explore surprising findings about killer whale societies, baby sea turtles' magnetic navigation, and moss spores that survived nine months in the vacuum of space. Plus, scientists may have finally solved the mystery of two massive structures hidden deep within Earth's mantle, and why a 20-year-old understanding of cell division just got completely rewritten.

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