Einstein’s Theory of General Relativity is currently our best approximation of how the universe ticks. But there are holes.

There’s an adage coined by [Ian Betteridge] that any headline ending in a question mark can be answered by the word “No”.

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

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

A new software package detailed by Chinese scientists promises to tell what time it is on the moon, accounting for effects of ...

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

In this last part of our series on recently digitized books from the Wenner Collection, we are focusing on works that ...

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

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

A Spanish carnival troupe dressed up as legendary scientist Stephen Hawking and zipped around in wheelchairs before ...

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...