Two weird pulsars serve as extremely powerful and accurate cosmic clocks — but only some of the time.
Samsung's Galaxy S25 is set to elevate Google AI integration, extending to hardware depths.
The supermassive black hole is 40 million times as massive as the sun and powers a quasar that existed 700 million years after the Big Bang.
The asteroid zoomed by Earth at a perfectly safe distance of around 1.8 million miles (2.9 kilometers).