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

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

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

The answer comes from a counterintuitive result of special relativity, a field of physics which is notoriously difficult to ...

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

The universe’s accelerating expansion has long puzzled physicists. For decades, dark energy, an unseen force thought to make ...

Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

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

Now, two unrelated-but-similar experiments confirm that, in a double-slit experiment, detection of a photon’s path (its ...

The final episode of fifth season of the Netflix series Stranger Things is out this week, and the concept of a wormhole ...

Astronomers have finally watched a black hole do something Albert Einstein only described on paper: twist the very fabric of ...