Clemson University floriculturist Jim Faust arrived in Manzanillo, Mexico, with an unusual mission: to stalk a population of wild poinsettias growing in their native habitat.
Journalists Maggie Koerth-Baker and Roberto Ferdman discuss the state of nuclear power around the world, as well as the fungal threat to bananas.
Jeff Potter, author of "Cooking for Geeks," explains how to make sour cream, chocolate bars, rolled oats—and even liquid smoke—from scratch.
Peel back the layers of how-it's-made with these recipes from Jeff Potter.
Brandon Keim, a freelance science reporter, shares this week's top science news.