In 2003, during his maiden spaceflight, China’s first astronaut,Yang Liwei, encountered a strange and unsettling phenomenon: a mysterious knocking sound. As he navigated the vast emptiness of space, ...

Engine knocking can result from one of several issues involving your engine. Whatever is causing it, it must be dealt with immediately so it doesn't become any worse. The knocking is a warning sign ...

Sound coming from your engine bay is typically very normal, as it means the engine is working and providing power to help move your vehicle. Most drivers have an idea of what their vehicle should ...

Space horror is a part of our popular culture. An episode of "Doctor Who" called "Listen," featuring Peter Capaldi in the titular role, saw the Doctor investigate a supposed creature that can never ...