eli5 If matter cannot be destroyed or created, how does space constantly expand?

904 views

Maybe I’m misinformed about this. But I was always told matter cannot be destroyed or created. But I have been told space is constantly expanding. Is this expansion of space not made up of “matter”? Where does it come from?

In: 282

34 Answers

Anonymous 0 Comments

Stretch an uncooked pizza and the pepperoni will be further apart, imagine the pepperoni is glued onto the dough and the dough can only be broken by black holes. Eventually the stretching of the dough will break the pepperoni, and then it’s atomic particles.

The dough stretches forever and gets faster as time goes on. The heat death of the pizza is when the dough is so stretched, the particles that made up the atoms of the pepperoni are stretched too far for their interactive forces to work.

You are viewing 1 out of 34 answers, click here to view all answers.