Thanks for your question. Genesis 1:1: "In the beginning God created the heaven and the earth. "
In my opinion, people tend to read into this verse and think that it is talking about planet earth and also about the atmosphere, or even including beyond the atmosphere into outer space. However, I see this a bit differently. I see this as talking more about God creating his own people. For example, the Bible defines heaven as God's throne: "Heaven is my throne" (Acts 7:49a). If we continue examining God's throne in the Bible, we see Jesus is in the midst of it: "For the Lamb which is in the midst of the throne shall feed them," (Rev 7:17a). To me, this definition of heaven is not talking about the sky or the upper atmosphere or outer space. Heaven is a term used to describe God's people in Matthew 24: 31. People are spoken of as being one end of heaven to the other. I think that when God's people have God on the throne in their hearts, the term heaven could be used.
There are other places in the Bible that people have assumed are talking about outer space and the planets, which I also do not think is the case intended. For example, we read: "[[To the chief Musician, A Psalm of David.]] The heavens declare the glory of God; and the firmament sheweth his handywork. " You could say that the planets and outer space show God's handiwork. Or, instead, you could let the Bible define the term heaven, and say that God's people, who have Jesus on the throne of their hearts, declare the glory of God. That makes sense, because the people of God cannot help but talk about the glory of God. Further, the term 'firmament' is just another word for heaven. We learn that in Genesis 1:8: "And God called the firmament Heaven "