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Are hurricanes getting stronger? Although we’ll never see a Category 6 hurricane, data does show that more hurricanes are becoming more severe. Hurricane and climate expert Mara Cordero-Fuentes of NASA's Goddard Space Flight Center tells us more about the connection between climate change and tropical cyclones

The new seven wonders of the world

Explore the Digestive Pathway: From the moment you take that first bite to the final destination, we'll guide you through every step of the journey. Witness how the mouth, esophagus, stomach, small intestine, and large intestine work in perfect harmony to break down food and extract essential nutrients.