#479 Garden of Marvels (Rebroadcast)
b'This week we\'re learning about botany and the colorful science of gardening. Author Ruth Kassinger joins us to discuss her book "A Garden of Marvels: How We Discovered that Flowers Have Sex, Leaves Eat Air, and Other Secrets of the Way Plants Work." And we\'ll speak to NASA researcher Gioia Massa about her work to solve the technical challenges of gardening in space. '