'Heavens' in the Bible

When the men of Ai turned back and looked, behold, the smoke of the city was ascending toward the sky, and they had no opportunity to run this way or that way. Then the people who had been running to the wilderness turned back toward the pursuers.

As they fled before Israel, while they were at the descent of Beth-horon, the Lord threw down large stones [of hail] from heaven on them as far as Azekah, and they died. More [Amorites] died because of the hailstones than those whom the sons of Israel killed with the sword.

So the sun stood still, and the moon stopped,Until the nation [of Israel] took vengeance upon their enemies.Is it not written in the Book of Jashar? So the sun stood still in the middle of the sky and was in no hurry to go down for about a whole day.