Add Yahoo as a preferred source to see more of our stories on Google. A view of space with lots of specks of light indicating galaxies and a few streaks representing lensed light. There is no denying ...

A novel theory suggests that the current expansion rate of the universe is not fixed, but was in fact quite different in the ...

For over a century, Einstein's general theory of relativity has been key to understanding gravity. But new research suggests this theory "glitches" in the farthest reaches of space. That doesn't mean ...

Cosmic voids may seem like the emptiest places in the universe, stripped of matter, radiation, and even dark matter. But they’re far from nothing. Even in these vast empty regions, the fundamental ...

New Theory Says the Universe Might Have Started Inside a Black Hole ...

A new three-volume study explores how quantum physics, gravitation and cosmology may be understood within a unified ...

When Voyager 1 finally crossed the “termination shock” at the edge of interstellar space in December 2004, space physicists anticipated the long-sought discovery of the source of anomalous cosmic rays ...

In the early 2000s, it seemed that cosmologists had solved the largest and most complex puzzle of all: how the universe works. “There was this amazing moment when all of a sudden, all the pieces in ...

According to big bang theory, for the first 10 - 43 seconds of the universe's life, all the forces of nature existed as one superforce. The universe was all energy, no matter. Physicists call this ...