This year’s prize highlights "the darkest secrets of the universe."
The merger occurred when the universe was half its current age, and it may have produced the first known black hole of intermediate size
Scientists may soon be able to observe a dramatic, long-predicted consequence of Einstein’s theory of general relativity.
Refined instruments reduce noise at the quantum level, allowing for discoveries of more distant gravitational waves.
Elusive intermediate mass black holes may hold clues to how their more common supermassive cousins form.