NASA's James Webb Space Telescope is providing the best look yet at the chaotic events unfolding around the supermassive ...

Astrophysicists have observed our central supermassive black hole. They found the accretion disk is constantly emitting flares without periods of rest. Shorter, faint flares and longer, bright flares ...

An asteroid that could level a city now has a 3.1 percent chance of striking Earth in 2032, according to NASA data released Tuesday -- making it the most threatening space rock ever recorded by ...