A Space Between: בֵּ֥ין – bayin
And God saw the light, that it was good: and God divided the light from the darkness.
( Genesis 1:4 ) KJV
In pondering the physics of creation we have come to understand that the earth is part of the ongoing process of the permanent physical separation of light from darkness. The process is not complete. Yet.
Principia Mattymatica 