Genesis 1 says that “In the beginning, God created the heavens and the earth.” Bible used “Heavens” as plural showing there is more than one heaven. The word “heavens” is based on the Hebrew word shamayim, which in its original language is closer to heights, elevation, sky etc. Shamayim denotes one component of the three-part biblical cosmology, the other elements being erets “the earth” and sheol “the underworld”. Shamayim is the dwelling place of God and other heavenly beings, erets is the home of the living, and Sheol is the realm of the dead.
Modern science and new theories telling us that there are possibilities of other worlds other universes which Bible already told thousands of years back. The Bible spoke of both ‘the heavens’ and ‘the highest heavens’ in Deuteronomy 10:14 and 1 Kings 8:27 and of the third heaven as in 2 Corinthians 12:2. The fact that Jesus passed through the heavens gives evidence there is more than one heaven.
Deuteronomy 10:14: Behold, to the LORD your God belong heaven and the heaven of heavens, the earth with all that is in it. ESV
1 Kings 8:27: But will God indeed dwell on the earth? Behold, heaven and the highest heaven cannot contain you; how much less this house that I have built! ESV
2 Corinthians 12:2: I know a man in Christ who fourteen years ago was caught up to the third heaven–whether in the body or out of the body I do not know, God knows. ESV