In this video, we cut a Subaru WRX STI engine head in half to explore its inner workings. Mitchell provides an educational explanation of how the components, including the valves, operate together. We ...

Lane splitting is illegal in many states and some other states don't have laws about it, according to experts.

In about one out of every 800 people, two chromosomes fuse together to form an unusual bond. These are known as Robertsonian chromosomes. It's a mystery that has long stumped scientists.