Astronomers spotted the largest flare ever released from a supermassive black hole as it snacked on a giant star.

Analysis suggests that the most luminous burst of light ever detected from a black hole — a fireworks show that was, at its peak, more than 10 trillion times brighter than the Sun — flared up as the ...

Lack of sleep isn't the only thing to blame for those dark circles under your eyes. Four doctors share why they happen, and ...

Pustules, itchy bumps or painful nodules on the scalp, commonly called scalp pimples, are more than a nuisance. Left ...