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

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

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 ...

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

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

A mind-bending theory called quantum immortality suggests that your consciousness shifts to parallel universes after you die.

Most current models of the Big Bang rely on general relativity along with additional elements that are introduced to make the theory fit observations. In contrast, this new framework provides a more ...

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 ...

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 ...

Scientists studying a mysterious effect called cosmic birefringence—a subtle twist in the polarization of the universe’s oldest light—have developed a new way to reduce uncertainty in how it’s ...