The bible is not a Science Book, that's why it and many other things are not in there, it's a book on human nature, from basic beliefs of honoring your parents, to not stealing, or killing, because it hurts people, humans...
but filled with stories of falling short,
David with Bathsheba and having her husband killed to hide their affair and pregnancy hidden, losing that child, and then still being rewarded with the Great King Soloman, Bathsheba's and David's later son..... (I mean, huh? You'd think David would not have been rewarded after the adultery and murder of B's husband, no?) So this is humanity, we just ain't perfect, no matter how close we are with God, as David was not....right? Or, maybe the meaning is that we have a very forgiving and loving God, and He really does see us as his children? I dunno?
Lot's daughters with their Father, sleeping with him, because they believed that he was the only person alive that could impregnate them and allow them to "produce and multiply" as commanded.... (Talk about warped thinking, imo....) But who knows how strongly they truly believed that multiplying at that time in the world, was more important, than committing the sin of incest? Again, I dunno what else a story like this could mean or why it even deserved to be a part of the Bible, yet it was....so what is it suppose to teach us? I mean, Lot and his daughters were chosen to be kept alive out of those at Sodom and Gomorrah etc, and his wife for just looking back was turned to a pillar of salt....yet, the daughters who got their father drunk and slept with him, were rewarded with life and living through the catastrophe? Is this just to teach us that we are not perfect or what?
I can go on and on and on....my husband and I often get in discussions about these very passages and many many others, just trying to figure out, what the meaning behind the stories are....
Anyway, the bible is mostly about humanity...and the human relationship with the Lord....
It isn't a Science book, I wouldn't expect to see the Big Bang theory or Worm holes, or theory of Inflation, the expanding Universe or anything like that, in the Bible....You'd need a book the size of Fort Knox to cover everything....