How does time work? | Life Science

If you consider time, it is easy to quickly get lost in the complexity of the subject. Time surrounds us – it always exists and is the basis of how we record life on Earth. It is the constant that holds back the world, the solar system and even the universe.

Civilizations have risen and fallen, stars have been born and extinct, and our one method of tracking every event in the universe and on Earth has compared them to the present with the regular passage of time. But is it really a constant? Is time really as simple as moving from one second to the next?