Can you see the Great Wall of China from space?
A space magazine takes on a famous myth, checked claim by claim against astronaut accounts.
33
claims in 30 statements
- 19 confirmed
- 8 need review
- 6 need re-check
Published by the Pikaan team. This review is read-only, and reading it uses no credits.
Claims and sources
Every claim in the source, in order. The summary under each claim is written by AI from its sources; open the sources to check it.
Claim 1 of 33Confirmed
Factual claim · Statement 1 of 30 · 93% confidence
AI summary
Independent sources confirm that the belief you can see the Great Wall of China from space is a widely circulated myth: NASA's history page calls it 'a space-based myth,' the BBC reported in 2004 that China ended the myth and revised its textbooks, and Scientific American headlined that you can't see the wall from space. The claim only asserts that this is a common myth, which these sources support.
Saved source links4nasa.gov · news.bbc.co.uk · scientificamerican.com
- www.nasa.gov · PDFs · great_wall_less_great_from_space7/2/2019 NASA - China's Wall Less Great in View from Spacewww.nasa.gov(opens in a new tab)
- Asia-Pacific | China ends Great Wall space myth - BBC NEWSnews.bbc.co.uk(opens in a new tab)
- No, You Can't See the Great Wall of China from Spacewww.scientificamerican.com(opens in a new tab)
- Can you see the Great Wall of China from space?www.skyatnightmagazine.com(opens in a new tab)
Factual claim · Statement 2 of 30 · 92% confidence
AI summary
NASA describes the idea as having 'become a space-based myth,' with the Great Wall 'frequently billed as the only man-made object visible from space,' and Space Daily calls the claim 'one of the most widely-repeated pieces of geographical trivia in modern circulation.' These sources confirm that the myth exists and is widely heard, which is what the statement asserts.
Saved source links4nasa.gov · spacedaily.com · scientificamerican.com
- www.nasa.gov · PDFs · great_wall_less_great_from_space7/2/2019 NASA - China's Wall Less Great in View from Spacewww.nasa.gov(opens in a new tab)
- The Great Wall of China is not actually visible from ...spacedaily.com(opens in a new tab)
- Is China's Great Wall Visible from Space?www.scientificamerican.com(opens in a new tab)
- Great Wall of Chinawww.worldhistory.org(opens in a new tab)
Factual claim · Statement 3 of 30 · 95% confidence
AI summary
Sources including The Vintage News, the Vatican Observatory, and BBC News Mundo document that the belief the Great Wall could be seen from the Moon was widely held, tracing it to William Stukeley's 1754 letter, Henry Norman in 1895, and a 1930s Ripley's Believe It or Not! Cartoon. The claim only asserts that people once held this belief, which these independent sources confirm.
Saved source links2thevintagenews.com · vaticanobservatory.org
Factual claim · Statement 4 of 30 · 97% confidence
AI summary
NASA's Space Place and the ISS National Lab both state directly that the International Space Station is in low Earth orbit (LEO), and ESA describes it as a 'permanently inhabited research institute in Low Earth Orbit.' Britannica and NASA deorbit documentation independently confirm the same, with altitudes around 250–260 miles.
Saved source links5spaceplace.nasa.gov · issnationallab.org · britannica.com
- What Is an Orbit? | NASA Space Place – NASA Science for Kidsspaceplace.nasa.gov(opens in a new tab)
- Earth Observation - ISSissnationallab.org(opens in a new tab)
- International Space Station (ISS) | Facts, Missions, & Historywww.britannica.com(opens in a new tab)
- ISS: International Space Station - ESAwww.esa.int(opens in a new tab)
- www.usatoday.com › story › techISS is often visible from Earth. Your guide to spot the stationwww.usatoday.com(opens in a new tab)
Factual claim · 97% confidence
Statement 4 of 30
The International Space Station is in low-Earth orbit.
AI summary
NASA states that people have lived and worked continuously aboard the International Space Station for more than two decades, and its Station Overview says crew members live and work aboard the orbiting outpost; Britannica likewise describes astronauts living and working on the ISS in microgravity.
Saved source links4nasa.gov · britannica.com
- Living in Space - NASAwww.nasa.gov(opens in a new tab)
- International Space Station Overview - NASAwww.nasa.gov(opens in a new tab)
- International Space Station (ISS) | Facts, Missions, & Historywww.britannica.com(opens in a new tab)
- International Space Station Facts and Figureswww.nasa.gov(opens in a new tab)
Factual claim · Statement 5 of 30
AI summary
NASA says the Great Wall is 'generally' not visible to the unaided eye in low Earth orbit, and a peer-reviewed optical analysis finds it effectively impossible for normal human vision at orbital distance, while Britannica notes it is only sometimes visible from low orbit. However, astronaut accounts (Eugene Cernan, Ed Lu) and Chinese outlets assert naked-eye sightings, so the absolute wording 'cannot be seen' overstates a claim that is at best conditional.
These links belong to the claim, but no exact sentence was found on their pages. Review the sources before relying on this result.
Saved source links5nasa.gov · pmc.ncbi.nlm.nih.gov · britannica.com
- www.nasa.gov · PDFs · great_wall_less_great_from_space7/2/2019 NASA - China's Wall Less Great in View from Spacewww.nasa.gov(opens in a new tab)
- Is it Really Possible to See the Great Wall of China from Space ...pmc.ncbi.nlm.nih.gov(opens in a new tab)
- Can you see the Great Wall of China from space? | Britannicawww.britannica.com(opens in a new tab)
- The Great Wall of China is not actually visible from ...spacedaily.com(opens in a new tab)
- Great Wall of China from Spacewww.china.org.cn(opens in a new tab)
Factual claim · Statement 6 of 30 · 98% confidence
AI summary
NASA, the European Space Agency, Associated Press and Wikipedia all record that Yuri Gagarin launched aboard Vostok 1 on 12 April 1961 and became the first human to travel in space, completing one orbit of Earth in a 108-minute flight. Independent official and news sources agree on the flight and on his status as the first human in space.
Saved source links4nasa.gov · esa.int · apnews.com
Factual claim · Statement 7 of 30
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Sources unavailable
No source links were published for this claim.
Factual claim · Statement 8 of 30
Pikaan is not showing a result or sources for this claim until it is checked again.
Sources unavailable
No source links were published for this claim.
Factual claim · Statement 9 of 30 · 97% confidence
AI summary
NASA's account and Britannica both state that Giovanni Schiaparelli, during his 1877 observations of Mars, recorded long linear features he called canali, Italian for channels (mistranslated into English as "canals"). Wikipedia, Science News and Open University independently repeat the same facts, so the claim is well grounded.
Saved source links5science.nasa.gov · en.wikipedia.org · britannica.com
- Triumph of Mariner 4 - NASA Sciencescience.nasa.gov(opens in a new tab)
- Giovanni Schiaparelli - Wikipediaen.wikipedia.org(opens in a new tab)
- Giovanni Virginio Schiaparelli | Mars mapping, crater naming, canalswww.britannica.com(opens in a new tab)
- How alien ‘canals’ sparked debate over life on Marswww.sciencenews.org(opens in a new tab)
- The search for water on Marswww.open.edu(opens in a new tab)
Factual claim · Statement 10 of 30 · 96% confidence
AI summary
Britannica states that Schiaparelli called the markings he observed on Mars in 1877 canali, a word "erroneously translated into English as 'canals' instead of 'channels'," and Wikipedia's articles on Martian canals and Schiaparelli likewise describe the popular mistranslation of canali ("channels") into English as "canals." Several independent sources, including JSTOR Daily and Space.com, confirm the same mistranslation.
Saved source links4en.wikipedia.org · britannica.com · daily.jstor.org
Factual claim · Statement 11 of 30 · 92% confidence
AI summary
Wikipedia's Mars canals article states Schiaparelli called the features canali ("channels"), which was mistranslated into English as "canals", and notes that around the turn of the century there was speculation they were irrigation canals built by intelligent aliens. Space.com and the BBC similarly describe the 1877 canali-to-"canals" mistranslation and the resulting belief, popularized by Percival Lowell, that intelligent beings built the Martian structures.
Saved source links2en.wikipedia.org · bbc.com
Factual claim · Statement 12 of 30 · 85% confidence
AI summary
NASA's own history PDF notes the Moon-visibility theory 'was repeated and grew until astronauts landed on the lunar surface,' and Apollo 12's Alan Bean reported 'No man-made object is visible at this scale.' Other accounts, including The Register and North Coast Journal, confirm the myth was only fully negated when Apollo astronauts looked back at Earth from the Moon, so the claim that Apollo missions empirically debunked it is well supported.
Saved source links5skyatnightmagazine.com · theregister.com · nasa.gov
- Can you see the Great Wall of China from space?www.skyatnightmagazine.com(opens in a new tab)
- Can you really see the Great Wall of China from the Moon?www.theregister.com(opens in a new tab)
- www.nasa.gov · PDFs · great_wall_less_great_from_space7/2/2019 NASA - China's Wall Less Great in View from Spacewww.nasa.gov(opens in a new tab)
- The Great Wall of China is not actually visible from ...spacedaily.com(opens in a new tab)
- Is the Great Wall Visible from Space?www.northcoastjournal.com(opens in a new tab)
Quote · Statement 13 of 30
AI summary
NASA's own pages and other outlets independently quote Apollo 12 astronaut Alan Bean saying the only thing visible from the Moon is 'a beautiful sphere, mostly white, some blue and patches of yellow, and every once in a while some green vegetation,' adding that no man-made object is visible at that scale. The attribution to Bean as Apollo 12 Lunar Module Pilot is consistent across these sources.
These links belong to the claim, but no exact sentence was found on their pages. Review the sources before relying on this result.
Saved source links1skyatnightmagazine.com
Reported claim · Statement 14 of 30
Pikaan is not showing a result or sources for this claim until it is checked again.
Sources unavailable
No source links were published for this claim.
Factual claim · Statement 15 of 30
AI summary
NASA's photo record (ISS010-E-8497) dates the image to 2004.11.24 and states it was taken by International Space Station Commander Leroy Chiao, describing it as apparently the first verifiable photo of the Great Wall of China made from low Earth orbit. NASA's own history article and the Internet Archive's NASA photo record independently repeat the same date, photographer, and subject.
These links belong to the claim, but no exact sentence was found on their pages. Review the sources before relying on this result.
Factual claim · Statement 16 of 30
AI summary
The available sources were not specific enough for a confident result.
No source links were saved with this assessment. Treat this answer as limited until it is checked again.
Sources unavailable
No source links were published for this claim.
Reported claim · Statement 17 of 30
Pikaan is not showing a result or sources for this claim until it is checked again.
Sources unavailable
No source links were published for this claim.
Underlying fact
Statement 17 of 30
The image shows central Inner Mongolia, according to this great NASA webpage on the subject.
Pikaan is not showing a result or sources for this claim until it is checked again.
Sources unavailable
No source links were published for this claim.
Reported claim · Statement 18 of 30
AI summary
NASA's own page about the Great Wall from space carries the identical caption: the yellow arrow points to an estimated location of 42.5N 117.4E where the wall is visible, on the 24 November 2004 ISS photo of central Inner Mongolia. The BBC Sky at Night article quotes this NASA caption accurately, so the description matches the NASA source it cites.
These links belong to the claim, but no exact sentence was found on their pages. Review the sources before relying on this result.
Factual claim · Statement 19 of 30 · 97% confidence
AI summary
The European Space Agency's own image page states that ESA astronaut Alexander Gerst took the photo from the Cupola on the International Space Station on 19 June 2018, and his accompanying social-media comment about trying to spot the Great Wall with an 800 mm tele lens is quoted there. BBC Sky at Night Magazine and Scientific American independently reproduce the same image with the same astronaut, date and location.
Saved source links3esa.int · skyatnightmagazine.com · scientificamerican.com
Reported claim · Statement 20 of 30
AI summary
The European Space Agency's caption for Gerst's 19 June 2018 Cupola photo reproduces his post word-for-word: "Can we see the Great Wall of China from the ISS?" Next to impossible with the naked eye. BBC Sky at Night Magazine independently reproduces the same Gerst quotation, confirming both the wording and the attribution to Gerst.
These links belong to the claim, but no exact sentence was found on their pages. Review the sources before relying on this result.
Saved source links3esa.int · skyatnightmagazine.com · x.com
Factual claim · Statement 21 of 30
Pikaan is not showing a result or sources for this claim until it is checked again.
Sources unavailable
No source links were published for this claim.
Factual claim · Statement 22 of 30 · 78% confidence
AI summary
NASA's history reference states the wall 'generally isn't' visible to the unaided eye in low Earth orbit, while confirming it can be imaged with lenses and radar, and the European Space Agency says it is not possible to see the wall from space but you can take a picture of it. Chinese scientists quoted by Xinhua called naked-eye visibility 'impossible,' and China's first astronaut Yang Liwei reported not seeing it, though a few Western astronauts (Cernan, Lu) have claimed to see it, which is why the claim carries some dispute.
Saved source links4nasa.gov · esa.int · china.org.cn
- www.nasa.gov · PDFs · great_wall_less_great_from_space7/2/2019 NASA - China's Wall Less Great in View from Spacewww.nasa.gov(opens in a new tab)
- ESA - Great Wall of China from spacewww.esa.int(opens in a new tab)
- Chinese Scientists Dispute Great Wall's Visibility from Spacewww.china.org.cn(opens in a new tab)
- Great Wall From Space - Universe Todaywww.universetoday.com(opens in a new tab)
Factual claim · Statement 23 of 30 · 97% confidence
AI summary
Britannica describes Yang Liwei as 'a Chinese astronaut and the first person sent into space by the Chinese space program,' and the BBC's record of the 15 October 2003 Shenzhou V launch names him as the single astronaut aboard China's first manned spacecraft. The China Manned Space Agency's Shenzhou V page likewise calls him 'the first astronaut Yang Liwei,' selected for China's first crewed spaceflight.
Saved source links4britannica.com · news.bbc.co.uk · en.cmse.gov.cn
Factual claim · Statement 24 of 30 · 98% confidence
AI summary
Britannica, China's national space agency (CNSA), and China.org all state that Yang Liwei's Shenzhou 5 mission orbited Earth 14 times during his roughly 21-hour flight on October 15–16, 2003. The People's Daily and Smithsonian corroborate the same figure.
Saved source links2britannica.com · cnsa.gov.cn
Factual claim · Statement 25 of 30 · 97% confidence
AI summary
NASA-affiliated China National Space Administration and Britannica both record that Yang Liwei launched aboard Shenzhou-5 on October 15, 2003 and orbited Earth 14 times before landing on October 16, 2003. The BBC's contemporaneous 2003 report confirms the launch and orbiting within October 2003.
Saved source links3cnsa.gov.cn · britannica.com · news.bbc.co.uk
Factual claim · Statement 26 of 30 · 97% confidence
AI summary
The China Manned Space Agency's mission page and the China National Space Administration both state that Shenzhou 5 launched Yang Liwei on 15 October 2003 and that the spacecraft orbited the Earth 14 times. Britannica and Wikipedia independently confirm Yang spent 21 hours in orbit aboard Shenzhou 5, China's first crewed spaceflight.
Saved source links4en.cmse.gov.cn · britannica.com · en.wikipedia.org
- Shenzhou V_CHINA MANNED SPACEen.cmse.gov.cn(opens in a new tab)
- Yang Liwei | Biography & Facts - Britannicawww.britannica.com(opens in a new tab)
- Shenzhou 5 - Wikipediaen.wikipedia.org(opens in a new tab)
- Ground Control to Yang Liwei: recalling China's first manned space ...www.cnsa.gov.cn(opens in a new tab)
Reported claim · Statement 27 of 30
AI summary
People's Daily reported that in a China Central Television interview on the evening of Thursday 16 October 2003, Yang Liwei said "I did not see the Great Wall from space" while describing the Earth as "very beautiful"; SpaceNews and BBC Sky at Night Magazine record the same remark nearly verbatim ("The Earth looked very beautiful from space, but I did not see our Great Wall"). The quote and its attribution are consistently confirmed across independent sources.
These links belong to the claim, but no exact sentence was found on their pages. Review the sources before relying on this result.
Saved source links5en.people.cn · spacenews.com · skyatnightmagazine.com
- 'I did not see Great Wall from space': Yang Liwei - People's Dailyen.people.cn(opens in a new tab)
- Great Wall of China seen from space by ESA Proba Satellitespacenews.com(opens in a new tab)
- Can you see the Great Wall of China from space?www.skyatnightmagazine.com(opens in a new tab)
- New Disputes Emerge on Great Wall in Textbooks - China.orgwww.china.org.cn(opens in a new tab)
- Q: Is the Great Wall really visible to astronauts in space?www.chinaservicesinfo.com(opens in a new tab)
Factual claim · Statement 28 of 30 · 96% confidence
AI summary
NASA's Earth Observatory records that astronaut photograph ISS032-E-9123 of the Pyramids at Giza was acquired on July 25, 2012 and was taken by the Expedition 32 crew aboard the International Space Station. Secondary sources such as Business Insider and Wikimedia Commons repeat the same Expedition 32 attribution.
Saved source links3science.nasa.gov · businessinsider.com · commons.wikimedia.org
Factual claim · Statement 29 of 30
AI summary
The available sources were not specific enough for a confident result.
No source links were saved with this assessment. Treat this answer as limited until it is checked again.
Sources unavailable
No source links were published for this claim.
Factual claim · Statement 30 of 30 · 82% confidence
AI summary
Britannica states you typically can't see the Great Wall of China from space, and a peer-reviewed analysis (Norberto López-Gil, PMC3972694) concludes the wall's sub-6-metre width makes it optically impossible to resolve at a glance in orbit. A China.org report likewise notes scientists believe the wall, roughly 10 metres wide, is invisible from outer space with the naked eye, despite contrary anecdotes from a few astronauts.
Saved source links4britannica.com · pmc.ncbi.nlm.nih.gov · spacedaily.com
- Can you see the Great Wall of China from space? | Britannicawww.britannica.com(opens in a new tab)
- Is it Really Possible to See the Great Wall of China from Space ...pmc.ncbi.nlm.nih.gov(opens in a new tab)
- The Great Wall of China is not actually visible from ...spacedaily.com(opens in a new tab)
- New Disputes Emerge on Great Wall in Textbooks - China.orgwww.china.org.cn(opens in a new tab)
Factual claim · 87% confidence
Statement 30 of 30
The Great Wall of China cannot be seen from space with the naked eye.
AI summary
Independent scientific sources confirm that Earth's atmosphere carries many detectable biosignatures of life, including oxygen, methane, carbon dioxide, ozone and water vapour, which NASA describes as gases that would not be present without life and which ESO's earthshine observations found in the amounts expected for a life-harbouring planet.
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Claim 1 of 33
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