When a pilot sends a "mayday" message, it means there is serious trouble. Discover the fascinating, true tales of people who lived to tell about their own terrifying aeroplane disasters, and what they did to survive.

Racing fans love to watch sports cars whirl around the track. Discover how these amazing machines have evolved from their early days and into some of the fastest cars on the track.

A mountain explodes. The earth shakes. Powerful ocean waves crash into coastlines. News reports from around the globe often feature stories about such dramatic and destructive events. ""Volcanic Eruptions, Earthquakes, and Tsunamis"" explores the underground causes of these natural disasters and shows how scientists seek to save lives through greater understanding of Earth's wild and restless geology.