When Albert Einstein first foretold that light travels the same speed everywhere in our cosmos, he basically imprinted a speed limit on it: 670,616,629...
The Theory of Relativity, published in 1905 by Albert Einstein, postulated the existence of gravitational waves—oscillations of the space-time fabric—and more than a century...
Some 7 billion light-years away, two black holes swirled closer and closer together over eons until they crashed together with a furious bang, creating...