A black hole has shredded a massive star like it was "preparing a snack for lunch," according to a team of scientists at the ...

Headlines about melting ice sheets usually focus on what is lost and then move on. What comes next is often overlooked, even ...

Abstract: In this study, an observer-based output feedback bounded control strategy is investigated for states unmeasurable nonlinear systems subjected to actuator hysteresis and unidirectional input ...