'Sky' in the Bible

Then the men of Ai looked back behind them and all of a sudden! smoke from the city was rising into the sky. They were unable to run in any direction, because the Israelis who had fled toward the wilderness had turned around to attack their pursuers.

So the sun remained still and the moon stood in place until the nation settled their score with their enemies. This is recorded, is it not, in the book of Jashar? The sun stood in place in the middle of the sky and seemed not to be in a hurry to set for nearly an entire day.