Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem ...

Physicists are quietly advancing a radical idea: time might not be a single, thin line but a full three‑dimensional landscape ...

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Physicists are increasingly entertaining a radical possibility: our familiar universe of three dimensions of space and one of ...

Intuitively, we know what time is, but try to explain it, and we end up tying our minds in knots. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.