Science Daily

1. Scientists just solved the 9-million-year mystery of where potatoes came from

   About 9 million years ago, a wild interspecies fling between tomato-like plants and potato relatives in South America gave rise to one of the world’s most important crops: the potato. Scientists have now traced its roots to a rare natural hybridization that created the tuber, a storage organ that allowed the plant to survive harsh Andean environments and spread rapidly.

2. Scientists finally solve the mystery of what triggers lightning

   A Penn State-led research team has unraveled the long-standing mystery of how lightning begins inside thunderclouds. Their findings offer the first quantitative, physics-based explanation for lightning initiation—and a glimpse into the stormy heart of Earth’s atmosphere.

3. 515-mile lightning flash caught from space

   A jaw-dropping 515-mile lightning bolt lit up the skies from Texas to Kansas City, smashing previous records and reshaping our understanding of extreme weather. Thanks to advanced satellite tech, scientists like Randy Cerveny and Michael Peterson are uncovering the mechanics of "megaflash" lightning—rare, colossal discharges that span hundreds of miles across the sky. These massive bolts, emerging from long-lived, sprawling thunderstorms, pose real danger even when skies seem clear.

4. Did drunk apes help us evolve? New clues reveal why we digest alcohol so well

   Ape behavior just got a name upgrade — “scrumping” — and it might help explain why humans can handle alcohol so well. Researchers discovered that African apes regularly eat overripe, fermented fruit off the forest floor, and this habit may have driven key evolutionary adaptations. By naming and classifying this behavior, scientists are hoping to better understand how alcohol tolerance evolved in our ancestors — and how it might have helped shape everything from safety in the trees to social drinking rituals.

5. 4,000-year-old teeth reveal the earliest human high — Hidden in plaque

   Scientists have discovered the oldest direct evidence of betel nut chewing in Southeast Asia by analyzing 4,000-year-old dental plaque from a burial in Thailand. This breakthrough method reveals invisible traces of ancient plant use, suggesting psychoactive rituals were part of daily life long before written records.