We really don't know shit. Watch How the Universe Works. Scientists explain in great detail how much we don't know. For example will the observable universe continue to grow? Will it shirk eventually? If it continues to space out it could get too cold.
And they speculate how it's a cycle. The universe we have no won't last forever and there may have been universes before us. We just don't know.
God is eternal? How about dark matter and dark energy? What lies beyond our universe? What was here before? Where exactly what the big bang? Everywhere?
I'll give you this. What little we know, it sure does seem like we are the only intelligent life as far as we can see. And if all those other planets aren't exactly right but ours is, and so many things had to happen for this to be livable, it sure does seem like a god was at play. He made everything right for us.
Only problem is it wasn't always right for us and it won't always be right for us. So when we are like Mars, why did God do that to us humans? His chosen species on his chosen rock.
Dark matter is a hypothetical form of
matter thought to account for approximately 85% of the matter in the
universe.
[1] Dark matter is called "dark" because it does not appear to interact with the
electromagnetic field, which means it does not absorb, reflect, or emit
electromagnetic radiation and is, therefore, difficult to detect. Various
astrophysical observations – including
gravitational effects which cannot be explained by currently accepted theories of
gravity unless more matter is present than can be seen – imply dark matter's presence. For this reason, most experts think that dark matter is abundant in the
universe and has had a strong influence on its structure and evolution.
In
physical cosmology and
astronomy,
dark energy is an unknown form of
energy that affects the
universe on the largest scales. The first observational evidence for its existence came from measurements of
supernovas, which showed that the universe does not expand at a constant rate; rather, the
universe's expansion is
accelerating.
[1][2] Understanding the universe's evolution requires knowledge of its starting conditions and composition. Before these observations, scientists thought that all forms of matter and energy in the universe would only cause the expansion to slow down over time. Measurements of the
cosmic microwave background (CMB) suggest the universe began in a hot
Big Bang, from which
general relativity explains its evolution and the subsequent large-scale motion. Without introducing a new form of energy, there was no way to explain how scientists could measure an accelerating universe. Since the 1990s, dark energy has been the most accepted premise to account for the accelerated expansion. As of 2021, there are active
areas of cosmology research to understand the fundamental nature of dark energy.
[3] Assuming that the
lambda-CDM model of cosmology is correct,
[4] as of 2013, the
best current measurements indicate that dark energy contributes 68% of the total energy in the present-day
observable universe.
Outside the bounds of our universe may lie a
"super" universe. Space outside space that extends infinitely into what our little bubble of a universe may expand into forever. Lying hundreds of billions of light years from us could be other island universes much like our own.