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

Time travel has shifted from pure fantasy to a serious, if highly constrained, topic in modern physics. The equations that describe gravity, quantum fields and the structure of spacetime now allow ...

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

To progress to the next level in understanding reality, we need to combine quantum mechanics and Einstein’s general ...

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

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

So far, the most accurate model describing gravity is still Einstein’s theory of general relativity. It states that gravity as we feel and observe it is a kind of side effect of the fabric of ...

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

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

Quantum Gravity and General Relativity represent two foundational yet traditionally disparate pillars of modern physics. General Relativity, Einstein’s seminal theory, elegantly encapsulates ...

"This work is a step toward understanding how quantum mechanics and gravity work together, a major unsolved problem in physics." When you purchase through links on our site, we may earn an affiliate ...