Science Friday® is produced by the Science Friday Initiative, a 501(c)(3) nonprofit organization.
A look at the science of sunscreen: how it intercepts the sun's rays, whether it blocks vitamin D production, and what SPF really means.
Think caffeine dehydrates you? Or that you can't get too much water on a hot day? Douglas Casa, of the Korey Stringer Institute, sets the record straight.
Mayo myth-busters, a ketchup jar that never jams, and a salute to the pickle.
Plan a scientific summer getaway around Grand Canyon geology, tidepools or volcanic lava tubes.
Thousands of lightning strikes occur each minute on Earth. We'll talk about the science of lightning.
Much-maligned moths are more than the butterfly’s drab cousin.
Hawk moths feed like hummingbirds. Ty Hedrick wants to know how they hold steady...
Can woolly bear caterpillars predict winter weather?
Several newly-discovered species of caterpillar in Hawaii function equally well ...
A virus known as baculovirus sends caterpillar climbing for the treetops.
\tLegend 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.