The world’s best clocks may be sensitive to an odd mix of quantum and relativistic effects that would stretch time and test ...

Space and time seem like two completely different ideas, but Einstein showed they are interlinked in what is known as ...

Space-time is the map of where and when events happen. A worldline is the record of every event that occurs throughout one’s life. The key question is whether the map — or all the events it draws ...

What is the meaning of life? Even the best of us couldn't hope to answer that question in a Universe Today article. But there ...

What if, just before we reach the bottom, we find out that reductionism fails? Big things are made of smaller things, and those smaller things are made of smaller things still. That’s reductionism in ...

Scientists in Japan have uncovered a strange new behavior in “heavy” electrons — particles that act as if they carry far more mass than usual. These electrons were found to be entangled, sharing a ...