Scientists successfully measured an event using zeptoseconds, which is an incredibly brief fraction of a second. The time it took for a photo to pass through a hydrogen molecule was measured at 247 ...

Scientists have measured the shortest unit of time ever: the time it takes a light particle to cross a hydrogen molecule. That time, for the record, is 247 zeptoseconds. A zeptosecond is a trillionth ...

One of the fundamental mysteries surrounding the concept of time is whether it’s continuous and our chronological measurements are just a way of making the sense of the world, or if it actually breaks ...

Scientists said that "zeptosecond" is the smallest amount of time. The new unit represents one trillionth of a billionth of a second (10 to the -21st power), which is smaller than a millisecond. In ...

The smallest conceivable length of time might be no larger than a millionth of a billionth of a billionth of a billionth of a second. That's according to a new theory describing the implications of ...