“This retroactive idea. It has to be that,” says Nobel Prize-winning mathematical physicist Sir Roger Penrose, reflecting on a problem about the building blocks of reality that has dogged physics for ...

For the first time, researchers have successfully coupled a continuous time crystal-a quantum system that oscillates ...

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He was a gentleman who helped create the world’s most deadly weapon; a humble man who collected as many honors as almost any man of his time. Before he died of a heart attack last week at 77, Danish ...

How do we know the speed of light – and why does it have a speed limit at all? Leah Crane explores the history of one of the ...

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 ...

To be fair, humans aren't shaped like sheep or grains. And unlike in the study with the board, Zuriguel believes that all ...