The Quran often cites scientific facts embedded in its verses. For instance, the Quran describes the orbit of planets when it makes the statement, “each floating in its own orbit” ( كُلٌّ فِي فَلَكٍ يَسْبَحُونَ).
36:40 The sun is never to catch up with the moon—the night and the day never deviate—each of them is floating in its own orbit.
(٤٠) لَا الشَّمْسُ يَنْبَغِي لَهَا أَنْ تُدْرِكَ الْقَمَرَ وَلَا الَّيْلُ سَابِقُ النَّهَارِ وَكُلٌّ فِي فَلَكٍ يَسْبَحُونَ
21:33 And He is the One who created the night and the day, and the sun and the moon; each floating in its own orbit.
(٣٣) وَهُوَ الَّذِي خَلَقَ الَّيْلَ وَالنَّهَارَ وَالشَّمْسَ وَالْقَمَرَ كُلٌّ فِي فَلَكٍ يَسْبَحُونَ
What is interesting about this statement is the expression كُلٌّ فِي فَلَكٍ (each in its orbit) is a palindrome. This means the statement is the same if read forwards or backward, such that the letters are orbiting around one another.
In the following verse, the Quran describes that one of God’s signs is that length of our shadows is determined by the sun.
25:45 Have you not seen how your Lord designed the shadow? If He willed, He could have made it fixed, then we would have designed the sun accordingly. But we designed it to move slowly.