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 ...

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 ...

From plants and bacteria to animals and humans, our world is filled with many living things. In fact, there are approximately 8.7 million species of plants and animals in existence, and only 1.2 ...

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 ...

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 ...

Background The evolutionary origin of the eukaryotic nucleus is obscure and controversial. Currently preferred are autogenic concepts; ideas of a symbiotic origin are mostly discarded and forgotten.