A new physics paper proposes modifications to Einstein’s theory of relativity that could solve one of the biggest issues ...

Now it seems that wormholes, those shortcut tunnels through time and space that Albert Einstein theorized and that science fiction depicts as portals between two distant galactic points, are at the ...

The collective gravity of countless neutrinos gently irons out the wrinkles in the cosmic web, preventing matter from ...

A Gravity Theory That Could Rewrite the Universe’s First Moments The first fraction of a second after the Big Bang has always ...

In 1916, only a year after Albert Einstein had published his general theory of relativity, Karl Schwarzschild used mathematical calculations to show this: If sufficient mass could be placed into an ...

Gravity is by far the weakest of nature’s four fundamental forces, and physicists have spent decades asking a deceptively ...

The far future of the cosmos may be less endless than it once appeared. New calculations place the decay of the universe’s ...

A new experiment with momentum-entangled helium atoms could help unite quantum mechanics and general relativity.

According to the team, the new approach can explain how the universe's initial inflation can naturally arise. But it comes ...

Astrophysicists have presumed for nearly a century that the universe will just keep expanding for all eternity, driven by an invisible force called dark energy. But new data suggest that this is ...

Waterloo scientists have developed a new way to understand how the universe began, and it could change what we know about the Big Bang and the earliest moments of cosmic history. Their work suggests ...

We have known for several decades that the universe is expanding. Scientists use multiple techniques to measure the present-day expansion rate of the universe, known as the Hubble constant. These ...