NOVA scienceNOW

Historic Space Suits See classic images from Projects Mercury, Gemini, and Apollo as well as space-suit prototypes that never made the cut. See the suits.

Bugs That Live on You From bed bugs to eyelash mites, a jungle of insects and arachnids thrives on and around the human body. Meet your critters.

How Smart Are Animals? Dolphins, parrots, octopuses, and dogs—including the amazing Border collie “Chaser”—may be smarter than you think. Watch the program.

The Dangers of Nanotech Nanotechnology is used in consumer goods from cell phones to sunscreen. But how safe is it? Listen.

The Future of Brain Transplants Will we ever grow replacement brains or do whole-brain transplants? Learn more.