For more than a millennium, Orthodox Christian monks have woken up in the predawn darkness to start their day with prayer at ...

Researchers have spent the past few years watching a black hole re-awaken roughly 300 million light-years away from Earth.

The swirling, paint-like clouds in the darkness of space in this stunning image seem surreal, like a portal to another world ...

Scientists have uncovered the strongest evidence yet for the existence of elusive intermediate-mass black holes (IMBHs), long ...

"We were surprised by the streams of light that were visible near the center of the galaxies, as nothing similar has been ...