Falcon 9 Rocket -very interesting

Genesis 1:7 | View whole chapter | See verse in context
And God made the firmament, and divided the waters which were under the firmament from the waters which were above the firmament: and it was so.

Firmament
The firmament is an element of biblical cosmology, a vast solid dome created by God on the second day to divide the primal sea into upper and lower portions so that the dry land could appear. The concept of a solid firmament was adopted into the subsequent Classical/Medieval model of heavenly spheres, but was dropped with advances in astronomy in the 16th and 17th centuries. Today it survives as a synonym for "sky" or "heaven".