Jupiter would need 80 times its current mass to ignite as a star, with gravity that could fling Earth out of the solar system or cause catastrophic collisions. Hunter found alive after going missing ...

State Key Laboratory of Crystal Materials, Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystals, Tianjin University of Technology, Tianjin 300384, China ...

San Francisco Mayor Daniel Lurie announced Wednesday he has directed city officials and departments to coordinate the city's response to any federal law enforcement action in the city. The executive ...

“To be perfectly honest, I’d like nothing better than to get Donald Trump and Melania Trump under oath in front of a court reporter, and actually find out all of the details of their relationship with ...

Abstract: This paper presents a new method to achieve approximate-optimal control of second-order nonaffine nonlinear systems with unknown dynamics, external disturbance, and input saturation by ...

Abstract: For the trajectory tracking problem of second-order nonlinear uncertain systems, this paper proposes a new adaptive nonsingular terminal sliding-mode control method. A novel sliding variable ...

Copyright 2025 The Associated Press. All Rights Reserved. Copyright 2025 The Associated Press. All Rights Reserved. Southern California’s Cheryl Miller reacts to a ...