If another gravity theory is correct, "then the broader implications are enormous," astrophysicist Stacy McGaugh told ...

These are big, literally cosmic questions, and astronomers continue to struggle to nail down the answers. Different ...

Humanity is lucky to reside on a planet circling a star with plentiful radiation, illuminating the world around us in ...

Scientists have found the "hungriest" black hole that is "feasting" on matter faster than experts previously thought possible ...

Why is the expansion of our Universe accelerating? Twenty-five years after its discovery, this phenomenon remains one of the greatest scientific mysteries. Solving it involves testing the fundamental ...

A radical hypothesis suggesting black holes could be behind the accelerating expansion of our universe has been stirring up ...

For nearly 10 years we’ve been operating in a search mode, and any day we could make a discovery,” said Gray Rybka, a ...