The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration. At the same time several telescopes, including the Chandra X-ray Observatory ...

"We would need to consider the possibility that the source was created (or trapped as a primordial black hole) by a highly advanced technological civilization," Harvard's Avi Loeb writes.

"This work is a step toward understanding how quantum mechanics and gravity work together, a major unsolved problem in ...

The study suggested that our universe formed from the collapse of a black hole, inside a bigger parent universe, rather than a sudden appearance.

From 'Moonlight' to 'Parasite,' documentaries to superhero epics — our picks for the greatest movies of the past 25 years ...