Spacetime itself would also need to be “quantized,” or broken down into constituent parts. This is what the notorious string theory attempts to do, as does loop quantum gravity, currently considered a ...

Time feels like the most basic feature of reality. Seconds tick, days pass and everything from planetary motion to human memory seems to unfold along a single, irreversible direction. We are born and ...

In the strange corner of modern physics where spacetime itself becomes the engine, the old rule that nothing can outrun light ...

SPACE-TIME may not be fundamental. Instead, according to the holographic principle, it emerges from something deeper, like a 3D hologram emerges from a flat surface. The principle says that space-time ...

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

For more than a century, modern physics has rested on two towering frameworks that do not quite agree with each other.

Whether space-time exists should neither be controversial nor even conceptually challenging, given the definitions of “space-time,” “events” and “instants.” The idea that space-time exists is no more ...

Curious connections between physics and math suggest to Latham Boyle that space-time may survive the jump to the next theory of reality. A decade after the discovery of the “amplituhedron,” physicists ...

I've been trying to explain quantum physics, forces, relativity, and space-time to my kid and we had a question that I'm finding difficult to find a solid answer to. Background you can skip if you ...

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