Key takeaway
The Quran says twice that the heavenly bodies, including the sun and moon, move in an orbit (falak) and are swimming (yasbaḥūn): "each, in an orbit, is swimming" (36:40; compare 21:33). It also says that "the sun runs [on course] toward its stopping point" (36:38). Modern astronomy confirms that the Moon orbits Earth and that the Sun itself is not stationary: it travels around the center of the Milky Way roughly once every 230 million years.
The verses
وَهُوَ ٱلَّذِى خَلَقَ ٱلَّيْلَ وَٱلنَّهَارَ وَٱلشَّمْسَ وَٱلْقَمَرَ ۖ كُلٌّ فِى فَلَكٍ يَسْبَحُونَ ٣٣
And it is He who created the night and the day and the sun and the moon; all [heavenly bodies] in an orbit are swimming.
وَٱلشَّمْسُ تَجْرِى لِمُسْتَقَرٍّ لَّهَا ۚ ذَٰلِكَ تَقْدِيرُ ٱلْعَزِيزِ ٱلْعَلِيمِ ٣٨ وَٱلْقَمَرَ قَدَّرْنَـٰهُ مَنَازِلَ حَتَّىٰ عَادَ كَٱلْعُرْجُونِ ٱلْقَدِيمِ ٣٩ لَا ٱلشَّمْسُ يَنۢبَغِى لَهَآ أَن تُدْرِكَ ٱلْقَمَرَ وَلَا ٱلَّيْلُ سَابِقُ ٱلنَّهَارِ ۚ وَكُلٌّ فِى فَلَكٍ يَسْبَحُونَ ٤٠
38 And the sun runs [on course] toward its stopping point. That is the determination of the Exalted in Might, the Knowing. 39 And the moon - We have determined for it phases, until it returns [appearing] like the old date stalk. 40 It is not allowable [i.e., possible] for the sun to reach the moon, nor does the night overtake the day, but each, in an orbit, is swimming.
Key Arabic terms
| Arabic | Transliteration | Meaning |
|---|---|---|
| فَلَكٍ | falak | a rounded course or orbit. The same word names the round whorl of a spindle. |
| يَسْبَحُونَ | yasbaḥūn | "they swim or float," moving by their own motion through a medium |
| تَجْرِى | tajrī | "runs or flows," continuous movement |
| لِمُسْتَقَرٍّ لَّهَا | li-mustaqarrin lahā | "toward its stopping point" or "for its appointed term or resting place" |
What the verses say
Quran 21:33 mentions the night and day, then the sun and moon, and says "all [heavenly bodies] in an orbit are swimming." Quran 36:38–40 adds that the sun "runs [on course] toward its stopping point," that the moon has measured phases, and that "it is not allowable [i.e., possible] for the sun to reach the moon, nor does the night overtake the day, but each, in an orbit, is swimming." The verb yasbaḥūn describes self-propelled, smooth movement, like a swimmer in water.
What astronomy shows
The Moon orbits Earth roughly every 27.3 days, which produces the phases mentioned in 36:39. The Sun, with the whole Solar System, orbits the Galactic Center at about 230 km/s and completes one circuit, a "galactic year," in roughly 225–250 million years. The Sun also moves relative to nearby stars toward a point astronomers call the solar apex. Some Muslim writers link this with "its stopping point." Others read mustaqarr as the end of the sun's appointed term, when the cosmos ends.
Separate paths that never collide
"It is not allowable [i.e., possible] for the sun to reach the moon" describes two bodies on distinct, ordered paths. That is an accurate observation, since the Sun and Moon move independently and do not cross into one another's course. It also reflects a recurring Quranic theme of cosmic order and precise measure (taqdīr).
Balanced assessment
Strong The Arabic wording directly supports the correspondence, and the fact is well established.
People have always seen the sun and moon move across the sky, so motion alone is not surprising. What stands out is the wording: each body has its own orbit and its own movement, and the sun is described as traveling toward a destination rather than as fixed. That is consistent with the Sun's real motion through the galaxy, which was unknown until modern astronomy. The verses do not adopt the geocentric spheres of Ptolemaic astronomy. They are also not a technical model of orbital mechanics.
Frequently asked questions
Does the Quran say the sun moves?
Yes. Quran 36:38 says "the sun runs [on course] toward its stopping point," and 21:33 says "all [heavenly bodies] in an orbit are swimming." Astronomy confirms that the Sun orbits the center of the Milky Way.
What does falak mean?
Falak means a rounded course or orbit. The Arabs also used it for the round whorl of a spindle.
References
Quran
- Quran 21:33, Saheeh International translation (Quran.com)
- Quran 36:38–40, Saheeh International translation (Quran.com)
Science & history
Classical exegesis is summarized from the standard commentaries (e.g. al-Ṭabarī, Ibn Kathīr, al-Qurṭubī). See our methodology.
Cite this page
Quran Scientific Miracles. “Sun and Moon in Their Orbits.” https://quranscientificmiracles.com/topics/orbits-of-celestial-bodies/ (reviewed 2026-10-20).