Climb Up & Ski Down Alaskan Peaks, Find the Bacteria of NYC’s Subway, Photograph the Egyptian Revolution, Glowing Sharks, Banana Recipes

This week, we find out what is the tallest mountain in Alaska's Brooks Range; swab New York City's subway system to see what bacteria we find; photograph Egypt's revolution and try not to get hurt; discover glow in the dark sharks; and learn about the new fungus that's eating our bananas.