One of the most robust 1,2 expectations for quantum gravity—the theory describing the interplay between gravity and quantum mechanics—is that space-time itself at the smallest scales should manifest ...

The flow of time isn’t as consistent as we might think – gravity slows it down, so clocks on the surface of Earth tick slower than those in space. Now researchers have measured time passing at ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. The Universe, as we know it, has a fundamental flaw staring us right in ...

The infamous twin paradox sends the astronaut Alice on a blazing-fast space voyage. When she returns to reunite with her twin, Bob, she finds that he has aged much faster than she has. It’s a ...

(via PBS Space Time) We know that gravity must cause clocks to run slow on the basis of logical consistency. And we know that gravity DOES cause clocks to run slow based on many brilliant experiments.

We first discovered the laws of gravity, and then those of quantum mechanics. But new work suggests nature might go about it the other way around: space-time, and hence gravity, could emerge from a ...