Time dilation means two observers may experience the same events years apart, revealing there is no universal “now.” ...

What if the universe remembers? A bold new framework proposes that spacetime acts as a quantum memory. For over a hundred ...

Scientists at TU Wien (Vienna) report that an exotic quantum phenomenon appears under conditions where it would not normally ...

Marty McFly went Back to the Future but what do scientists think about time travel in the real world? Is it possible? And ...

Christopher Nolan's movies can be hard to understand, but some seriously challenge your brain more than others.

Autumn is here, and that means it's time for the clocks to fall back. Here's everything to know with daylight saving time ...

Take, for example, someone living in Chicago. On November 1, the day before daylight saving time ends, the sun will rise at 7:23 a.m. and set around 5:45 p.m. The next day, the sun will rise around ...

Abandoning the twice-per-year switch to and from daylight saving time could greatly reduce strokes and obesity cases, a new study finds.