Competitions at the Winter Olympics are defined by extremes: extreme air, extreme speed and extreme temperatures. On sliding tracks, athletes in luge, bobsled and skeleton break highway speed limits.

As Olympic athletes prepare to race in Greece, National Geographic Ultimate Explorer turns its focus to speed — why we crave it and how we attain it. Exploring our obsession with speed, Ultimate ...

South Australia Police have released a video of a high-speed motorcycle crash in an effort to vindicate tougher new penalties for extreme speed offences. They say the video was released at the request ...

Jet engines strapped to feet create an extreme speed run reaching 103.4 MPH, turning human movement into a jet-powered ride. The video highlights acceleration, balance, and how the rider controls ...