The early universe may have been such a violent place that space-time itself fractured like a pane of glass, releasing gravitational waves that astronomers say we may have already detected.

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

The very fabric of the universe is ringing with gravitational waves from its earliest epoch, and researchers have finally "heard" this cosmic symphony. On Thursday, June 28, the North American ...

“The gravitational-wave background was always going to be the loudest, most obvious thing to find,” said Chiara Mingarelli, an astrophysicist at Yale University and a member of NANOGrav, which ...

For decades, scientists have believed there should be black holes that fall between two well-known types. On one end are ...

Scientists on Wednesday unveiled evidence that gravitational waves, the ripples in the fabric of space-time predicted by Albert Einstein more than a century ago, are permeating the universe at low ...

Some theorists are now floating ideas that range from dark matter interactions to new physics beyond the Standard Model.

Various large-scale astrophysical research projects are set to take place over the next decade, several of which are so-called cosmic microwave background (CMB) experiments. These are large-scale ...

Let’s take an example: the idea that particles can be in two places at once. We are familiar with particles that are in one place at a time – an electron, say, that hits a screen and leaves a dot.