Black hole and Big Bang singularities break our best theory of gravity. A trilogy of theorems hints that physicists must go ...

Records from Albert Einstein's final years are being published as a book around 20 years after their discovery, as ...

When a German physicist returned from a health retreat 100 years ago, his ideas sparked a debate about reality, and gave rise ...

At cosmological scales, Albert Einstein’s theory of general relativity has given scientists an immensely accurate blueprint ...

The mind-bending concept of time dilation results from a seemingly harmless assumption—that the speed of light is the same ...

"This discovery was partly serendipity! But, we believe there are many more such opportunities hidden in Hubble data." ...

It’s the weirdest thing: quantum theory works incredibly well in practice. It powers devices ranging from MRI machines to lasers and the very computer you’re reading this on. But even after 100 years, ...

One of the biggest challenges in modern physics is uniting quantum mechanics and general relativity. A new experiment may ...

The imaginations of scientists and sci-fi lovers have just been stimulated with the news that a warp drive is being studied ...

When it comes to space travel, Albert Einstein's theory of relativity is a major inconvenience. With the laws of physics (currently) prohibiting faster-than-light travel, velocities are limited to ...

Decades ago, a renegade physicist suggested that gravity isn't so much a force as just a byproduct of the universe's tendency ...