Astronomers have for the first time discovered what may be a free-floating black hole by observing the brightening of a more distant star.

The more humanity tries to do more with data, the more it’s evident that the most urgent questions won’t get answered easily.

How can Einstein's theory of gravity be unified with quantum mechanics? This is a challenge that could yield deep insights into black holes.

Unexplained results from the XENON1T experiment may have been caused by dark energy, and not the dark matter the experiment tried to detect.