ISLAMIC POLEMICS SERIES • ARTICLE 04

Scientific Errors in the Qur'an

---

When the "Miracle of Scientific Foreknowledge" Meets the Actual Text

---

① THE ARGUMENT: WHAT IT IS AND WHY IT MATTERS

One of the most popular modern arguments for Islam is the claim that the Qur'an contains miraculous scientific knowledge---knowledge that Muhammad could not have possessed in the seventh century and that was only confirmed by modern science centuries later. This is known as the "scientific miracle" (i'jaz ilmi) argument, and it has been promoted by figures such as Dr. Maurice Bucaille (The Bible, the Quran and Science), Dr. Zakir Naik, and countless Islamic YouTube channels and pamphlets. The argument runs: if the Qur'an contains scientific facts unknown in the seventh century, it must have come from God.

The polemic response does not merely dispute the "miracle" claims. It goes further: the Qur'an contains statements about the natural world that are demonstrably false by modern scientific standards. These are not ambiguous passages that could be read multiple ways. They are concrete descriptions of cosmology, biology, and the physical world that contradict what we now know to be true.

Why it matters: The scientific-miracle argument is one of the most common entry points in Muslim evangelism (da'wah), especially aimed at Western audiences. If the Qur'an's scientific claims are a mix of hits and misses---some vaguely compatible with modern science, others plainly wrong---then the argument proves nothing. A book that gets some things right and some things wrong is consistent with human authorship, not divine omniscience. The standard must be applied consistently: if one accurate scientific passage proves the Qur'an is from God, then one inaccurate passage disproves it by the same logic.

---

② THE ISLAMIC DEFENSE

Muslim scholars and apologists have developed several categories of response to the charge of scientific errors:

• The Qur'an is a book of signs (ayat), not a science textbook. Many Muslim scholars argue that the Qur'an's purpose is spiritual guidance, not scientific instruction. When it references the natural world, it does so to point people toward God's power and creativity, not to provide technical descriptions. Expecting scientific precision from a devotional text is a category error.

• Phenomenological language. Just as English speakers say "the sun rises" without believing the sun orbits the earth, the Qur'an uses the language of appearances. Descriptions of the sun "setting in a muddy spring" or the earth being "spread out" are everyday observational language, not cosmological claims.

• Translation and interpretation issues. Many alleged errors depend on specific English translations of Arabic words that have broader semantic ranges. The Arabic original, apologists argue, is more flexible and does not commit to the specific scientific error the English translation implies.

• Science is incomplete and always changing. What appears to be a Qur'anic error today may be confirmed by future discoveries. Science is a process, not a final verdict, and judging an eternal text by current scientific consensus is premature.

• The "miracle" passages still stand. Even if a few passages are debatable, the apologist argues, the Qur'an's accurate statements about embryology, the expanding universe, ocean barriers, and mountain roots are too specific to be coincidental. The overall pattern still supports divine origin.

---

③ QUR'ANIC TEXTS THAT CONTAIN SCIENTIFIC PROBLEMS

The following are among the most frequently cited scientific errors in the Qur'an. Each is drawn directly from the Arabic text, and the problems persist across multiple mainstream translations.

1. The Sun Setting in a Muddy Spring (Surah 18:86). "Until, when he reached the setting of the sun, he found it setting in a spring of dark mud, and he found near it a people." The verse describes Dhul-Qarnayn traveling to the place where the sun sets and finding it going down into a murky body of water. The Arabic word wajada ("he found") is the same word used in the next verse when he "found a people"---a phrase no one reads as phenomenological. The Qur'an presents this as a narrative of what Dhul-Qarnayn actually encountered.

2. The Earth Spread Out Flat (Surah 71:19, 78:6, 88:20, 91:6). Multiple verses describe the earth as "spread out" (sutihat), "a bed" or "a carpet" (firash, mihad), and "flattened" (dahaha, though this word is contested). Surah 71:19 says, "And Allah has made for you the earth an expanse." Surah 78:6 asks, "Have We not made the earth a resting place?" The cumulative imagery---bed, carpet, spread out, expanse---consistently depicts a flat, stationary surface, not a rotating sphere.

3. Stars as Missiles Against Jinn (Surah 67:5, 37:6--10). Surah 67:5: "And We have certainly beautified the nearest heaven with stars and have made them as missiles to drive away the devils." Surah 37:6--10 elaborates: the stars of the lowest heaven are adornments and "guarding against every rebellious devil" who tries to eavesdrop on heavenly councils, at which point they are "pursued by a burning flame." Stars are not projectiles. They are massive thermonuclear bodies light-years away. The passage reflects a pre-scientific cosmology in which stars are small luminous objects in the nearest sky.

4. Seven Heavens Stacked Above the Earth (Surah 2:29, 67:3, 71:15). Surah 67:3: "\[He\] who created seven heavens in layers. You do not see in the creation of the Most Merciful any inconsistency." Surah 71:15: "Do you not consider how Allah has created seven heavens in layers?" This is a cosmological model of seven solid, concentric heavens stacked above the earth---a model common in ancient Near Eastern and Greco-Roman cosmology (Ptolemaic spheres, Jewish and Christian apocalyptic literature). There are no seven physical layers above the earth.

5. Human Embryology: Sperm Comes from Between the Backbone and Ribs (Surah 86:5--7). "So let man observe from what he was created. He was created from a fluid, ejected, emerging from between the backbone and the ribs." This reflects the ancient Hippocratic and Galenic belief that semen originated in or near the kidneys and traveled down from the area between the spine and the lower ribs. Modern anatomy places sperm production in the testes. The description matches second-century Greek medicine, not modern embryology.

6. The "Blood Clot" Stage of Embryology (Surah 23:14). "Then We made the sperm-drop into a clinging clot (alaqah), and We made the clot into a lump of flesh (mudghah)." The word alaqah means "blood clot," "leech," or "clinging thing." Muslim apologists emphasize the "leech" or "clinging" meaning, but the primary lexical meaning is "congealed blood." There is no blood-clot stage in human embryonic development. The description closely parallels Galen's De Semine, which described the embryo forming from menstrual blood---a common ancient error.

7. Mountains as Pegs Preventing Earthquakes (Surah 78:6--7, 21:31, 16:15). Surah 78:6--7: "Have We not made the earth a resting place and the mountains as stakes?" Surah 21:31: "And We placed within the earth firmly set mountains, lest it should shift with them." Modern geology does not support the idea that mountains prevent earthquakes. Mountains are the result of tectonic activity, not anchors against it. Some of the most seismically active regions on earth are mountainous (the Himalayas, the Andes, the Japanese Alps).

8. The Moon Emitting Its Own Light? (Surah 71:16). "And made the moon therein a light (noor) and made the sun a burning lamp (sirajan)." Muslim apologists argue the distinction between noor (reflected light) and siraj (burning lamp) shows the Qur'an knew the moon reflects light. However, the word noor is used elsewhere for Allah Himself (24:35) and for the Qur'an (5:15). If noor specifically means "reflected light," these other uses become theologically problematic. The word simply means "light" or "illumination" with no inherent implication of reflection.

---

④ ISLAMIC DOCUMENTATION AND ARGUMENTS AGAINST THE CRITICAL CLAIMS

Muslim scholars have engaged with these challenges in detail. A fair treatment requires presenting their strongest responses.

• Surah 18:86 --- Dhul-Qarnayn's perspective. Scholars like Ibn Kathir and modern apologists argue this verse describes what Dhul-Qarnayn perceived from his vantage point---the sun appearing to set into the sea---not a cosmological claim. The next verse (18:90) describes the sun "rising" on a people without shelter, which no one reads as the sun literally emerging from the ground. Both verses, they argue, use observational language.

• Dahaha and the "ostrich egg" argument. Some apologists claim the Arabic word dahaha (Surah 79:30) is related to the word for "ostrich egg" (udhiyah/dahyah) and therefore implies the earth is egg-shaped. This is presented as scientific foreknowledge of the earth's oblate spheroid shape.

• The "isostasy" defense of mountain pegs. Muslim apologists point to the geological concept of isostasy---that mountain ranges have deep root structures extending into the earth's mantle---as confirmation that the Qur'an's "pegs" description is scientifically accurate. The root-like structures of mountains, they argue, do function as stabilizers of the continental crust.

• The embryology passages match modern stages. Dr. Keith Moore, a prominent embryologist, was famously cited in the 1980s as confirming that the Qur'an's stages of embryonic development (nutfah, alaqah, mudghah) correspond to actual stages of development. His endorsement has been widely circulated in Islamic apologetics.

• Noor vs. siraj as a genuine distinction. The Qur'an consistently uses siraj for the sun and noor for the moon. Apologists argue this consistent distinction cannot be coincidental and demonstrates awareness that the moon's light is derived, not generated.

• The "signs, not science" framing. Scholars like Nidhal Guessoum (Islam's Quantum Question) and Ziauddin Sardar have argued that the i'jaz ilmi (scientific miracle) industry is itself problematic and that the Qur'an should not be treated as a science textbook in either direction---neither to prove miracles nor to allege errors.

---

⑤ THE PROBLEM WITH THE ISLAMIC RESPONSE

The Islamic defenses for the scientific-error passages are creative, but each one, when examined carefully, either introduces new problems or fails to resolve the original difficulty.

The "phenomenological language" defense is applied selectively. When the Qur'an says the sun "sets in a muddy spring," apologists call it phenomenological language---describing appearances. But when the Qur'an describes embryonic stages, they insist it is precise scientific description. You cannot have it both ways. Either the Qur'an speaks in the language of appearances (in which case the embryology passages are also just appearances, not miracles) or it speaks with scientific precision (in which case the sun setting in mud is a scientific error). The apologist must choose a single hermeneutic and apply it consistently. The moment you switch between "it's phenomenological" and "it's scientifically precise" depending on which verse you are defending, the method has collapsed into ad hoc special pleading.

The Dhul-Qarnayn defense actually strengthens the problem. Saying the verse describes Dhul-Qarnayn's perspective rather than cosmological reality raises a question: why does Allah narrate a factually incorrect perception without correction? Elsewhere in the Qur'an, when people hold false beliefs, Allah corrects them. Here, the text presents the sun setting in a spring as straightforward narrative. There is no qualifier ("it appeared to him" or "in his sight"). The Arabic reads wajadaha taghrubu fi 'aynin hami'atin---"he found it setting in a muddy spring." The verb wajada ("found") is the same verb used in the next sentence when he "found near it a people"---which everyone reads as a real encounter with real people. If the "finding" of the people is literal, reading the "finding" of the sun as metaphorical in the same sentence requires a grammatical double standard the Arabic does not support.

The "ostrich egg" argument has been abandoned by serious scholars. The word dahaha in Surah 79:30 does not mean "shaped like an ostrich egg." The word means "spread out" or "expanded." The supposed connection to "ostrich egg" comes from a different Arabic word (udhiyah) that is not the word used in the verse. Classical Arabic lexicons (Lane's Lexicon, Lisan al-Arab) define dahaha as spreading or flattening, not as shaping into an egg. Even prominent Muslim scholars have distanced themselves from this argument. It is a modern apologetic invention, not a linguistic reality, and using it in conversation will undermine your Muslim friend's credibility with anyone who checks the Arabic.

The isostasy defense for "mountain pegs" misrepresents the geology. It is true that mountain ranges have deep root structures (isostatic roots). But the Qur'an does not merely say mountains have roots; it says Allah placed them so the earth would not "shift" or "shake" with its inhabitants (21:31, 16:15). This is a specific functional claim: mountains prevent earthquakes. Modern geology says exactly the opposite---mountains are produced by the same tectonic forces that cause earthquakes, and mountainous regions are among the most seismically active places on earth. The root structure exists because of tectonic collision, not as a stabilizing anchor against it. The Qur'an's claim is not vaguely right; it is specifically wrong about the causal relationship.

The Keith Moore endorsement does not survive scrutiny. Dr. Moore's association with the Qur'anic embryology argument was funded by the Saudi government's Commission on Scientific Signs in the Qur'an and Sunnah, a body that paid Western scientists to participate in conferences affirming Qur'anic science. Moore's own textbook (The Developing Human) does not include the Qur'anic material in its standard academic editions---it appears only in a special "Islamic edition." The word alaqah means "blood clot" in its primary lexical sense, and there is no blood-clot stage in embryonic development. The description closely parallels Galen's second-century De Semine, which was available in Arabic translation well before Muhammad. The Qur'anic embryology is not miraculous foreknowledge; it is recycled Greek medicine.

The noor/siraj distinction does not hold up lexically. The argument that noor means "reflected light" and siraj means "generated light" requires a technical distinction the word noor does not carry. Noor is used for Allah in Surah 24:35 ("Allah is the light of the heavens and the earth"). It is used for the Qur'an in Surah 5:15. It is used for prophetic guidance. If noor specifically means "reflected light," then Allah's light is reflected (from what?), the Qur'an's light is reflected, and prophetic guidance is reflected. The word simply means "light" or "illumination." The technical distinction is imposed retroactively to create a "miracle" where none exists.

The "science changes" defense proves too much. Saying "future science may confirm the Qur'an" is an unfalsifiable escape hatch. By this logic, no scientific claim in any book could ever be called wrong, because future discoveries might always change the picture. But the same reasoning would apply to every religious text and every ancient cosmology. If Qur'anic errors are protected by "science might change," then the Bible's creation account, Hindu cosmology, and Norse mythology are equally protected. The defense does not distinguish the Qur'an from any other text. It destroys the scientific-miracle argument entirely, because if science might change, then apparent confirmations of the Qur'an might also be overturned.

---

⑥ KEYS TO ADDRESS THIS IN A CONVERSATION

1. Do not lead with obscure examples. Start with the clearest cases---Surah 18:86 (the sun setting in a spring) and Surah 86:5--7 (sperm from between the backbone and ribs). These are straightforward in the Arabic, consistent across translations, and difficult to explain away. Save the more technical arguments (embryology stages, isostasy) for people who want to go deeper.

2. Name the double standard explicitly. This is the most important move in the conversation. When your Muslim friend cites a "scientific miracle," ask: "If a passage that matches modern science proves the Qur'an is from God, what does a passage that contradicts modern science prove?" This is not a trick question. It is asking for a consistent standard of evaluation. If they say the error is phenomenological language, ask why the miracle is not also phenomenological language.

3. Know the Galenic connection. The embryology passages in the Qur'an closely parallel Galen's De Semine (On Semen), which was translated into Syriac and Arabic and was available in the intellectual world of seventh-century Arabia. The stages described---semen becoming a blood clot becoming a lump of flesh---are Galen's stages, not modern embryology. If your Muslim friend brings up embryology as a miracle, being able to cite the Galenic parallel is decisive. Nabeel Qureshi and David Wood both cover this in detail.

4. Respect the "signs, not science" position. If your Muslim friend says the Qur'an is not a science textbook and should not be evaluated on those grounds, acknowledge that this is an intellectually respectable position. Then gently note that it requires them to abandon the scientific-miracle argument entirely---including the embryology, the expanding universe, and the ocean-barrier passages. You cannot claim miracles when the science seems right and deny the science framework when it seems wrong.

5. Do not overstate the case. Some passages used as "errors" by polemicists are genuinely debatable. The "expanding universe" argument (Surah 51:47) is contested by Arabic linguists on both sides. The "iron sent down from heaven" claim (Surah 57:25) is ambiguous enough to allow multiple readings. Stick with the clear cases and be honest about the ambiguous ones. Overstating weakens your credibility.

6. Redirect to the real question. The scientific-error discussion is a useful entry point, but it is not the most important conversation. The deeper question is: what is your basis for believing the Qur'an is from God? If the answer was "scientific miracles," and that argument has been shown to be unreliable, the door is now open to discuss more fundamental questions---the Islamic Dilemma, the character of Muhammad, the historical evidence for the resurrection of Jesus. Use the science conversation as a bridge, not a destination.

7. End with an honest question. "If you found out that the scientific-miracle argument didn't hold up, would that change anything about your faith? Or is your faith based on something deeper?" This is a genuinely respectful question that invites self-reflection. Many Muslims have never been asked to identify what their faith actually rests on apart from the popular apologetic arguments. The answer they give will tell you where the real conversation needs to go.

• • •

• • •