I am always in awe at how scientific the Quran is, subhanallaah. However, scientific ayats are easily missed as we read through the Quran, perhaps because they appear as any other ayats and surahs in the Quran. There is no major attention given to it, e.g. like a having a specific chapter on 'Stem Cell Biology'.
These advanced or scientific facts are often mentioned in just one or two ayats, or a few. Only God knows best, but from my perspective it makes sense. God does not have to say much, because this is something too easy for God. God mentions it so we, man, can know and learn more about it.
We only talk about a subject more, and explain them in detail when we are excited or amazed, or when it takes effort for us to achieve the subject. Imagine us, in modern cities, getting clean drinkable water just by turning on the tap - we may inform our guest, "get drinking water from the tap." However, if our guest is from a place without easy access to water, they would describe it in much more detail to others back home.
One example of the numerous awesome scientific facts in the Quran is in Al Qiyamah 75:3-4,
أَيَحْسَبُ ٱلْإِنسَٰنُ أَلَّن نَّجْمَعَ عِظَامَهُۥ(3) بَلَىٰ قَٰدِرِينَ عَلَىٰٓ أَن نُّسَوِّىَ بَنَانَهُۥ (4)
translated by man as :
Does man think that we will not assemble his bones? Yes, in fact, we are able to put together in perfect order the very tips of his fingers.
This would be something beyond man's abilities - i.e. to re-create the whole living human being. However, this idea should not be too strange to the modern man because, already, we applaud and are amazed at how scientists are now able to grow cells for the purpose of mending or replacing some parts of the human body, and they are still studying to actually create a whole human organ - look up 'stem cells current application and studies'. These with man's very limited knowledge.
At this age, with man's current advancements in science and technology, the Words in the Quran should make more sense and give us further solid proofs that the Quran is indeed the truth and that it is way advanced, beyond man's knowledge.
There are too many valuable information in the Quran, overlooked or not studied in detail yet, This book is an all encompassing guide for man, if only man study and ponder over it's every Words. masyaaAllaah.