Police have released a man hours after they detained him in connection to the disappearance of Nancy Guthrie, the mother of US news anchor Savannah Guthrie, CBS News, the BBC's US partner, has ...

Dr. Peter Attia, the celebrity doctor who helped popularize the longevity craze, has publicly apologized as he faces a growing backlash following the release of email exchanges he had with the late ...

Abstract: In this study, a cooperative control methodology is developed for an air-ground system under a complicated environment. The air-ground system consists of a car-like mobile robot (CLMR) with ...