A dark point inside a wave of light sounds like a contradiction. It is also something researchers say they have now viewed in real time, moving so quickly that, by one measure, it outran light itself.

For the first time, researchers have detected empty voids moving faster than the speed of light — and they blazed past that cosmic speed limit without breaking the laws of relativity. A recent study ...

A team of physicists has done something that sounds impossible: they filmed points of absolute darkness racing through a beam of light faster than light itself can travel. The footage, captured using ...

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