Most Recent Episode

May 24, 2024

A van outfitted as a mobile laboratory helps scientists study how legal cannabis products affect users—without breaking the law. Plus, after decades of under-development, spending on high-speed rail projects is ramping up in California, Florida, and the Northeast Corridor. And, for the first time, scientists have recorded how salps form chains and swim in corkscrews to reach the ocean’s surface each night.

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