Albert Einstein won the 1921 Nobel Prize in Physics, but not for relativity—the theory that made him famous. This article ...

For more than a century, Einstein’s relativity has set a hard speed limit for the universe, with light as the ultimate ...

Time is a straightforward concept - or is it? The passing of minutes and years isn't as easy to explain as many assume.

In the strange corner of modern physics where spacetime itself becomes the engine, the old rule that nothing can outrun light ...

Researchers at Stevens Institute of Technology and Yale University are initiating a first-of-its-kind experiment designed to detect gravitons, the hypothesized quantum building blocks of gravity.

A century ago, Erwin Schrödinger came up with an equation that says how the quantum world behaves. Now scientists are asking ...

Even given a set of possible quantum states for our cosmos, it's impossible for us to determine which one of them is correct ...

Quantum mechanics has always carried a quiet tension. At its core, the theory allows particles to exist in many states at ...

A hundred years ago this week, at the height of the quantum revolution, Austrian physicist Erwin Schrödinger submitted a ...

The way time ticks forward in our universe has long stumped physicists. Now, a new set of tools from entangled atoms to black ...

Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

The most precise clocks ever built are now testing Einstein, hunting dark matter, and reshaping how we define time itself. In A Nutshell The world’s most precise clocks are changing how we understand ...