13:2
ٱللَّهُ ٱلَّذِى رَفَعَ ٱلسَّمَٰوَٰتِ بِغَيْرِ عَمَدٍۢ تَرَوْنَهَا ۖ ثُمَّ ٱسْتَوَىٰ عَلَى ٱلْعَرْشِ ۖ وَسَخَّرَ ٱلشَّمْسَ وَٱلْقَمَرَ ۖ كُلٌّۭ يَجْرِى لِأَجَلٍۢ مُّسَمًّۭى ۚ يُدَبِّرُ ٱلْأَمْرَ يُفَصِّلُ ٱلْءَايَٰتِ لَعَلَّكُم بِلِقَآءِ رَبِّكُمْ تُوقِنُونَ
It is Allah who erected the heavens without pillars that you [can] see; then He established Himself above the Throne and made subject the sun and the moon, each running [its course] for a specified term. He arranges [each] matter; He details the signs that you may, of the meeting with your Lord, be certain.
Translation · Saheeh International
Tafsir
Ibn Kathīr (abridged)
Clarifying Allah's Perfect Ability
Allah mentions His perfect ability and infinite authority, since it is He Who has raised the heavens without pillars by His permission and order. He, by His leave, order and power, has elevated the heavens high above the earth, distant and far away from reach. The heaven nearest to the present world encompasses the earth from all directions, and is also high above it from every direction. The distance between the first heaven and the earth is five hundred years from every direction, and its thickness is also five hundred years. The second heaven surrounds the first heaven from every direction, encompassing everything that the latter carries, with a thickness also of five hundred years and a distance between them of five hundred years. The same is also true about the third, the fourth, the fifth, the sixth and the seventh heavens. Allah said,
اللَّهُ الَّذِى خَلَقَ سَبْعَ سَمَـوَتٍ وَمِنَ الاٌّرْضِ مِثْلَهُنَّ
(It is Allah who has created seven heavens and of the earth the like thereof.) 65:12 Allah said next,
بِغَيْرِ عَمَدٍ تَرَوْنَهَا
(..without any pillars that you can see.) meaning, `there are pillars, but you cannot see them,' according to Ibn `Abbas, Mujahid, Al-Hasan, Qatadah, and several other scholars. Iyas bin Mu`awiyah said, "The heaven is like a dome over the earth," meaning, without pillars. Similar was reported from Qatadah, and this meaning is better for this part of the Ayah, especially since Allah said in another Ayah,