The black hole at the heart of galaxy SDSS1335+0728, located 300 million light-years away, was quiet for decades as it consumed little matter and was in a dormant state. But recently it suddenly lit ...

Last summer, researchers announced the first ever detection of a supermassive black hole being spotted as it awoke. The ...

A study published in the Journal of Personality and Social Psychology found that people who wake up at this time are often ...

If you give your body enough time to find the beat, you’ll notice differences not only in how you sleep but also how you feel ...