TRUE

Scientific analysis from NASA and optical researchers confirms that the Great Wall of China cannot be seen from orbit without aid 15. The structure is too narrow and its color blends too closely with the surrounding landscape to be detected by the naked eye 611. Although some astronauts have claimed to see it, such reports are widely exaggerated or attributed to rare, specific conditions that do not represent standard visibility 710. Most high-credibility sources categorize the idea of its visibility as a space-based myth that has been debunked by both physical evidence and the limitations of human vision 389.