Regarding heavens, the bible refers to three. Our atmosphere. The cosmos, the second heaven. The heaven where God's throne is, the third heaven. 2Corinthians12:2.
The heaven around the earth, i.e., the sky atmosphere, is part of our earthly material dimension. Likewise are the planets, solar systems, stars, galaxies, etc. (i.e., celestial bodies, whole universe). Those are all of the earthly material dimensions, i.e., things seen.
Rom 1:20
20 For the invisible things of Him from the creation of the world are clearly seen, being understood by the things that are made, even His eternal power and Godhead; so that they are without excuse:
KJV
Heb 11:3
3 Through faith we understand that the worlds were framed by the word of God, so that things which are seen were not made of things which do appear.
KJV
Those two verses are actually defining one of the basic laws of physics of how God created our material dimension. Physical matter cannot be either created, nor destroyed (by man that is). This a basic law of physics of our material dimension. Material matter only changes its form (solid, liquid, gas, vapor).
So how did material matter originate since it did not come from itself? That's what that verse is saying about things which we see (i.e., material matter) were not made by those material things that are seen. It means something invisible and separate from matter made them, and that is our Heavenly Father and His Son Who created all things. That reveals there is ANOTHER dimension of existence separate from our earthly one, a dimension that at present is invisible to us. Yet God has shown that invisible dimension to some of His servants (Isaiah 6; 2 Corinthians 12; Daniel 7:9; Ezekiel 1, etc.).
Satan and his angels can roam the first and second heaven. But can only appear before God in the third heaven when summoned.
The idea of a "third heaven" comes from 2 Corinthians 12 where Paul spoke of one "caught up" to Paradise and heard unspeakable words not lawful to utter. It is referring to the future world to come, not a multiple level of heaven. The heavenly dimension where God is does not have levels like in some Chinese occult book, which is where some got that 3 levels in heaven idea from. To show this, Isaiah 14 reveals in the future world when Satan is locked in the pit, we will be able to look over at him and say, "Is this the man that...?". Likewise in Luke 16, the rich man in hell was able to look over a border of separation in Paradise at Lazarus with Abraham, showing a lateral layout, not a multiple vertical layout. The 3rd heaven is about the 3rd world time in the world to come. The first was the time of old when Satan first rebelled, this present world is the second, and the world to come will be the third.
The war in Revelation 12 which Satan and his angels get cast down to earth - is talking about the second heaven, the cosmos. His place found there no more. For one thing the cosmos is going to be shaken, pulled aside in Revelation 6, the sixth seal near the end ofthe 7 years.
The second heaven, Davy, the cosmos. the stars.
In Genesis 1:1, in the Hebrew, the heavens is indeed plural, but it's only about two heavens. One is the sky around the earth, and the other is about God's Abode of Heaven. There is no 3rd literal heaven, as I explained that idea from 2 Cor.12 above.
The cosmos is just an ancient Greek word used to describe the order of the universe. It is not about God's Abode of Heaven which exists behind a veil in a different dimension than our material dimension. The cosmos (or universe) is part of our material dimension. God is NOT... living on some far away solar system in the universe, for if that were so then it would mean He would be an alien and not God!
The angels are different beings than humans and have different capabilities. They have form, but are not always visible to us.
Though Satan is referred to at times as an angel, he is actually a cherib, a truly heavenly created being. The word angel itself though simply means 'messenger'. That's why in some places in the OT when referring to our Lord Jesus in OT times, the phrase "Angel of The Lord" is used, which is only pointing to our Lord Jesus in the sense of appearing as a Messenger at times to His servants on earth, and not meaning that He was anything other than God. So I interpret the word angel to simply mean someone in that other dimension, whether it be one of God's heavenly servants, or the devil, or one of the devil's servants. So really, the word angel is a generic term, not a specific specie of heavenly being.
As in Mark 12:25, Jesus said when the dead rise they are "as the angels which are in heaven." The idea is that they will be in that same state the heavenly angels live in, i.e., the spiritual body state. Apostle Paul explained that state of existence of the resurrection in 1 Corinthians 15 in detail. He said that flesh and blood cannot inherit the Kingdom of God, neither does corruption inherit incorruption. So the future existence of the world to come will not be one of a flesh body like we have today. It will be an existence with the "image of the heavenly" Paul mentioned there, which is the same state the angels live in, in heaven. And in final, the OT prophets connect this earth's future with the heavenly dimension, both dimensions existing in the same space and time, i.e., a heaven on earth.
Satan will be visible when Jesus returns. Ezekiel 28:12-19 is an account of Satan's fall and soon destruction.
17 Thine heart was lifted up because of thy beauty, thou hast corrupted thy wisdom by reason of thy brightness:
I will cast thee to the ground, I will lay thee before kings, that they may behold thee.
18 Thou hast defiled thy sanctuaries by the multitude of thine iniquities, by the iniquity of thy traffick; therefore will I bring forth a fire from the midst of thee, it shall devour thee,
and I will bring thee to ashes upon the earth in the sight of all them that behold thee.
19 All they that know thee among the people shall be astonished at thee: thou shalt be a terror, and never
shalt thou
be any more.
How and when is verse 18, going to happen, Davy?
Satan indeed will be visible in our earthly dimension when our Lord Jesus returns to lock him in his pit prison for the "thousand years" of Rev.20. He is not destroyed then yet, not until after the "thousand years" is finished, as written in Rev.20. When Satan and his angels are booted down to this earth after the war in heaven per Rev.12:7 >, they will be visibly in our earthly dimension. The majority of the world will not recognize him as Satan. They instead will worship him in place of God, as written in Rev.13.
Rev.20 shows Satan is destroyed when he leads the deceived nations upon the "camp of the saints" on earth at the end of the millennium, and God rains fire down from heaven and burns them all up, and Satan is then cast into the "lake of fire". Ezekiel 28:18 suggests then, that the "lake of fire" will be located on earth in that time. Makes sense, because after our Lord Jesus returns, the veil hiding the heavenly dimension from our earthly material dimension will be removed, and hell will be coming on earth (see Rev.22:14-15 of where the wicked's abode will be during the coming millennium.).