Graceful and fierce 13-time Taekwondo world champion Rayna Vallandingham flaunts her tiny waist and chiseled abs — a figure ...

Once the microrobot reached its target, the scientists could use a high-frequency magnetic field to heat the microrobot, dissolving its shell and releasing the medicine inside. This invention was ...

Shop the hottest toys this holiday season. We rounded up the best holiday toys — digital pets, dolls, plushies, games, ...