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

Add Yahoo as a preferred source to see more of our stories on Google. Physicists at CERN are turning to AI to find something wrong with their theories. The Large Hadron Collider smashes particles ...

One of the greatest unsolved problems in physics concerns unifying quantum mechanics and general relativity—two equally successful theories that infamously don’t get along. And the latest attempt to ...

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 ...

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 ...

In the quest to unravel the mysteries of the universe, physicists are revisiting a 150-year-old theory that could illuminate why matter prevails over antimatter. This knot hypothesis, originally ...

Over the short span of just 300 years, since the invention of modern physics, we have gained a deeper understanding of how our universe works on both small and large scales. Yet, physics is still very ...

In this 2011 image, a NASA engineer looks on as the first six of the James Webb Space Telescope's 18 mirror segments are prepped to begin their final cryogenic testing. Engineers spent three decades ...

For decades, physicists have accepted that the universe has two sizes: small and large. So-called classical equations govern big objects like baseballs and galaxies, while quantum mechanics describes ...