This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

The biggest lesson from Einstein's general theory of relativity is that space itself isn't a flat, unchanging, absolute entity. Rather it's woven together, along with time, into a single fabric: ...

Mind = blown.

From the fall of an apple to the glow of the farthest known star, gravity quietly choreographs almost everything that happens ...

The first detection of gravitational waves in 2016 provided decisive confirmation of Einstein’s general theory of relativity. But another astounding prediction remains unconfirmed: According to ...

Quantum gravity challenges the classical notion of spacetime by positing that the smooth, continuous fabric described by general relativity may arise from more fundamental, non-spatiotemporal entities ...

A team of researchers led by the University of Warwick has developed the first unified framework for detecting "spacetime ...

A unified Theory Of Everything is the holy grail of physics, but gravity refuses to play ball. Now, a newly proposed theory attempts to unify Einstein’s theory of gravity with quantum mechanics – and ...

A scientist studying crystal structures has developed a new mathematical formula that may solve a decades-old problem in understanding spacetime, the fabric of the universe proposed in Einstein's ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. For a scientist, it's hard to imagine anything more exciting than being ...