Legend holds that the length of a woolly bear caterpillar's color bands can be used to forecast how severe the winter weather will be. The myth dates back to colonial American folklore but was popularized by a 1948 study. SciFri finds out if there's any truth to the lore, and what the caterpillar's fuzzy bristles are really used for.
This week, India launched Mangalyaan, its first robotic mission to orbit Mars and probe its atmosphere. Only Russia, Europe, and the U.S. have successfully orbited the planet. Joan Johnson-Freese, a professor in national security affairs, and planetary scientist Bruce Jakosky discuss the Indian space program, as well as NASA's upcoming mission to the Martian atmosphere.
Echinacea, vitamins, and other dietary supplements have become a $5 billion industry, but the products don't need to be pre-approved by the FDA before they go on the market. How do we know what is really in our supplements? What regulations are currently in place? How can we keep ourselves safe and informed?
Since its appearance in the U.S. seven years ago, white-nose syndrome has decimated bat populations across eastern North America. Scientists say they've determined the culprit--a soil-dwelling fungus called Pseudogymnoascus destructans--and now they're investigating novel ways to stop it, including antifungal bacteria.
Forget dissecting frogs and building potato batteries. High school students today are learning genetic engineering--and some are even redesigning life. Bioethicists and the FBI have taken note and are rethinking biosecurity for the synthetic biology revolution.