Physicists are quietly advancing a radical idea: time might not be a single, thin line but a full three‑dimensional landscape ...

Why the universe is expanding faster and faster remains one of the biggest open questions in physics. Current theories cannot ...

The accelerating expansion of the universe is usually explained by an invisible force known as dark energy. But a new study ...

The X-Ray Imaging and Spectroscopy Mission (XRISM), a joint mission between the Japanese Aerospace Exploration Agency (JAXA) ...

Physicists have long treated space and time as the stage on which quantum particles perform, not as actors in the drama ...

Einstein’s claim that the speed of light is constant has survived more than a century of scrutiny—but scientists are still ...

The rapid acceleration of the universe’s expansion continues to challenge our understanding of fundamental physics. Why the ...

Quantum theory and Einstein's theory of general relativity are two of the greatest successes in modern physics. Each works ...

If you’re concerned about getting every microsecond out of life, then you might not want to migrate to Mars. Using extremely ...

Astronomers have seen spacetime itself wobble near a spinning black hole for the first time. The discovery, revealed during a star’s destruction, confirms a major prediction of Einstein’s theory of ...

110 years ago today, Albert Einstein published his General Theory of Relativity, which redefined the relationship between matter and gravity. Suddenly, our mysterious universe made a little more sense ...

The Event Horizon Telescope only recently gave us the first images of the environment immediately surrounding a black hole. Since then, it has been boosting the resolution and filling in the details ...