Dr. Maurice Bucaille also points out the important fact that the Quran does not contain "the theories prevalent at the time of the Revelation that deal with the organization of the celestial world" (p. 153).If the Quran was authored by any human being, he or she would have naturally included the ideas prevalent at the time. But many of those ideas were later shown to be inaccurate.

How did the author of the Quran know enough to exclude those ideas, unless the author is God himself. 
Those who say that Muhammad authored the Quran think that the Arabs were very knowledgeable in the field of Science, and Muhammad was or course one of them. But this explanation is based on the incorrect assumption that the Arabs knew Science before the Quran was revealed. As pointed out by Dr. Bucaille, the fact is that Science in Islamic countries came after the Quran, not before. "In any case", writes Dr. Bucaille, "the scientific knowledge of that great period would not have been sufficient for a human being to write some of the verses to be found in the Quran" (The Bible, the Quran and Science, p. 1 53-1 54) 

Modern astronomers are aware that the stars and planets are kept within ranges of precise distances from each other. Had it not been for this fact, collision between them would be inevitable. The author of the Quran was also aware of this. In the Quran we read "the sun and the moon (are subjected) to calculations (Quran 55:5). 
Again, we read: "For you (God) subjected the sun and the moon, both diligently pursuing their courses" (Quran 14:33). The phrase 'diligently pursuing their courses' is a translation of the Arabic term daa'ib which here means 'to apply oneself to something with care in a perseverant, invariable manner, in accordance with set habits' (The Bible, the Quran and Science, p.l55). And that indeed is how the sun and moon behave. 
Another verse in the Quran says, "the stars are in subjection to His command" (Quran 16:12). Order in the universe is essential for its preservation. God, who subjected them to that order knew about it before any scientist.