You miss a couple more questions, from the opposite direction. These questions are:
1. Does the universe exit?
2. Does life exist?
The reason why these are important is, nobody can prove them with solid, empirical science.
Big Bang is a fantasy that sounds good to those who need it to believe in. But the science behind BB is so extremely lacking that it is really utter foolishness. Besides, asking any layman to understand the little science there is, makes the whole topic of this question in a public forum to be foolishness.
As far as life goes, the dividing line between something that is dead, and the moment before while it was still alive, hasn't been found. If it is close to being found, it is understood (almost) by a few technical people, but absolutely none of us lay people.
The point of asking these two additional questions is, before we ask about some fanciful place called Heaven, we really need to be afraid, because we don't really know anything about this age.
But take heart. Since this universe and life seem to exist without proof, and without the knowledge of how such could be possible, something like Heaven could exist for the same, unknown reasons.
While it's true that the nature of the universe and the origins of life are complex topics, science continues to explore and uncover new insights. The existence of the universe is supported by a wide range of empirical evidence, from cosmic background radiation to the expansion of space. Regarding life, while the exact line between life and non-life is not yet fully understood, scientists have made significant progress in studying the origins of life through various disciplines such as chemistry, biology, and astrobiology.
The evidence is not empirical because nobody has 'been there' to find all the things that cause the evidence to exist as it does. What is empirical is that certain interpretations have been placed on the evidence to show universal unity in a direction that the 'directors' of the interpretations desire.
Scientific progress is beautiful and wonderful to look at. The scientific failures that led to the progress are rather ugly. Back in the late 1800s, scientists declared that everything worth knowing had been scientifically discovered already. Now we see how far off they were in their interpretations.
Rather than fearing the unknown, we can embrace the wonders of the universe and the potential for discoveries yet to come. Science has a remarkable track record of unraveling mysteries and expanding our knowledge. While we may not have all the answers at present, ongoing research and advancements in technology offer promising avenues for exploring the origins of the universe and the complexity of life.
Fearing the unknown is something that many modern scientists should be doing. Why? Because they have ignored the foundation of all knowledge. Saint Paul shows this when he talks about Jesus:
--- Ephesians 4:10: "He who descended is the very one who ascended higher than all the heavens, in order to fill the whole universe," -
https://biblehub.com/ephesians/4-10.htm.
--- Colossians 2:3: "... in whom are hidden all the treasures of wisdom and knowledge," -
https://www.biblehub.com/colossians/2-3.htm,
Yet most scientists ignore the source, Jesus, and try to muddle their way through discovery without Him, the only real foundation.
The human thirst for understanding and the quest to explore the unknown have led to remarkable breakthroughs throughout history. It is through scientific inquiry and rigorous investigation that we inch closer to unraveling the mysteries of existence. So, while we may not have definitive answers yet, the pursuit of knowledge and the wonder it brings can lead us to new insights, including the possibility of realms such as Heaven, which may have their own uncharted explanations waiting to be discovered
Science hides a lot of what they find. For example, they have found through the Voyager satellites that they almost don't have a clue as to what the universe is made of. But those who publish what the scientists say about Voyager discoveries, publish those ideas as though they were fact, even though the scientists clearly express them only as ideas.
Consider the Microsphere Nanoscope... a microscope that can see living things in color that were only formerly visible, dead, in an electron microscope. Yet few people talk about the MN, because what it sees is changing the whole understanding of how life works. And no scientist wants his pet ideas to be trampled on, even by the truth.
Part of the reason science is not finding the truth is, they fail to scientifically appropriately explore the foundations of the Bible, God, and the reason for Jesus... Jesus, Who was made to be equal with God, by God Himself.
It's not that God is trying to hide the knowledge of what He does - the making of all of creation. Rather, it's that science is trying to find it out without the correct and proper direction for such finding. Amos 3:7: "Surely the Sovereign LORD does nothing without revealing his plan to his servants the prophets," -
https://biblehub.com/amos/3-7.htm. Could it be that the whole creation - God's created universe - is revealed through what He told His servants the prophets?
That is something worth scientific investigation!
Time for us to really start getting the correct basis for all scientific study... God's Word first, and then understanding how scientific discoveries match God's Word.