At the center of our galaxy, there's a mysterious, diffuse glow given off by gamma rays — powerful radiation usually emitted by high-energy objects such as rapidly rotating or exploding stars. NASA's ...

Here’s what you’ll learn when you read this story: In May of 2019, a short-duration binary black hole (BBH) merger contained no evidence of the inspiral signal typical of these kinds of a ...

Despite decades of effort, scientists have never observed the mysterious substance directly, hence its name. “There’s no question that the nature of dark matter is one of the outstanding major ...