The document discusses many scientific facts mentioned in the Quran related to astronomy, geography, geology, oceanology, biology, botony, zoology and physiology. It notes that while the Quran is not a book of science, it contains signs and facts that have been verified by modern science. The challenges that the Quran contains no contradictions with established science and to produce a chapter like it if it is not from God. It also lists some undiscovered facts and signs of the Day of Judgement mentioned in the Quran.