Sealed on Base.

{"canonicalPath":"/v/the-great-wall-of-china-1pt6l","receipt":{"challengePrompt":"Have evidence from a lunar mission or optics calculation showing the Great Wall is naked-eye visible from the Moon? Send it for a counter-check.","claim":"The Great Wall of China is visible from the Moon with the naked eye.","confidence":"High","createdAt":"2026-06-18T09:02:44.072Z","kicker":"Moon-visibility myth","paidAt":"2026-06-18T09:02:44.070Z","reasons":[{"body":"The Moon is about 384,000 km from Earth. The Great Wall is long, but it is only a few meters wide. Naked-eye visibility depends on angular width and contrast, not total length.","stance":"weakens","title":"Too narrow at lunar distance"},{"body":"NASA has repeatedly described the claim as a myth. Astronauts report that even from low Earth orbit the wall is hard or impossible to distinguish without aid, weather, lighting, and prior location cues.","stance":"weakens","title":"Astronaut reports reject it"},{"body":"Some human-made features, city lights, airports, and large land-use patterns can be visible from orbit. That does not make the Great Wall visible from the Moon with unaided eyes.","stance":"context","title":"Orbit is not the Moon"}],"score":5,"shareLine":"FactPage check: FALSE — The Great Wall of China is not visible from the Moon with the naked eye.","slug":"the-great-wall-of-china-1pt6l","sources":[{"publisher":"NASA","snippet":"NASA addresses the Great Wall visibility myth and distinguishes space views from Moon visibility.","title":"Great Wall","url":"https://www.nasa.gov/image-article/great-wall/","usedFor":"Space-agency source on the Great Wall visibility claim."},{"publisher":"Scientific American","snippet":"Scientific American explains why the common visibility claim is misleading or false.","title":"Is China's Great Wall Visible from Space?","url":"https://www.scientificamerican.com/article/is-chinas-great-wall-visible-from-space/","usedFor":"Independent scientific explanation."},{"publisher":"NASA Johnson Space Center","snippet":"NASA's astronaut photography FAQ addresses common questions about what can be seen from orbit.","title":"Gateway to Astronaut Photography of Earth FAQ","url":"https://eol.jsc.nasa.gov/faq/","usedFor":"NASA context for naked-eye visibility claims from space."}],"summary":"The claim conflicts with basic visual resolution and with NASA’s public explanations. The Great Wall is very long, but it is far too narrow and low-contrast to be seen from the Moon by the naked eye.","vaultCategory":"Science","verdict":"FALSE"},"type":"factpage.receipt","version":"fp-receipt-v1"}