Question: Who claimed to see the Great Wall from the space shuttle?
About the article "Great Wall of China", section "Visibility from low Earth orbit".

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A more controversial question is whether the Wall is visible from low Earth orbit (an altitude of as little as ).
NASA claims that it is barely visible, and only under nearly perfect conditions; it is no more conspicuous than many other man-made objects.
Other authors have argued that due to limitations of the optics of the eye and the spacing of photoreceptors on the retina, it is impossible to see the wall with the naked eye, even from low orbit, and would require visual acuity of 20/3 (7.7 times better than normal).
Astronaut William Pogue thought he had seen it from Skylab but discovered he was actually looking at the Grand Canal of China near Beijing.
He spotted the Great Wall with binoculars, but said that "it wasn't visible to the unaided eye."
U.S.
Senator Jake Garn claimed to be able to see the Great Wall with the naked eye from a space shuttle orbit in the early 1980s, but his claim has been disputed by several U.S. astronauts.
Veteran U.S. astronaut Gene Cernan has stated: "At Earth orbit of to high, the Great Wall of China is, indeed, visible to the naked eye."
Ed Lu, Expedition 7 Science Officer aboard the International Space Station, adds that, "it's less visible than a lot of other objects.
And you have to know where to look.
"In 2001, Neil Armstrong stated about the view from Apollo 11: "I do not believe that, at least with my eyes, there would be any man-made object that I could see.
I have not yet found somebody who has told me they've seen the Wall of China from Earth orbit.
...I've asked various people, particularly Shuttle guys, that have been many orbits around China in the daytime, and the ones I've talked to didn't see it.
"In October 2003, Chinese astronaut Yang Liwei stated that he had not been able to see the Great Wall of China.
In response, the European Space Agency (ESA) issued a press release reporting that from an orbit between , the Great Wall is visible to the naked eye.
In an attempt to further clarify things, the ESA published a picture of a part of the “Great Wall” photographed from Space.
However, in a press release a week later (no longer available in the ESA’s website), they acknowledged that the "Great Wall" in the picture was actually a river.
Leroy Chiao, a Chinese-American astronaut, took a photograph from the International Space Station that shows the wall.
It was so indistinct that the photographer was not certain he had actually captured it.
Based on the photograph, the "China Daily" later reported that the Great Wall can be seen from space with the naked eye, under favorable viewing conditions, if one knows exactly where to look.
However, the resolution of a camera can be much higher than the human visual system, and the optics much better, rendering photographic evidence irrelevant to the issue of whether it is visible to the naked eye.
STS-89 was a space shuttle mission to the "Mir" space station flown by Space Shuttle " Endeavour", and launched from Kennedy Space Center, Florida on 22 January 1998. 
) was an American astronaut from Kealakekua, Kona, Hawaii, who successfully flew into space with the Space Shuttle Discovery on STS-51-C.
He died in the destruction of the Space Shuttle "Challenger", on which he was serving as Mission Specialist for mission STS-51-L.
He was the first Asian-American to reach space. 
The site was conceived from an idea between Chris Bergin and three NASA and United Space Alliance managers, who wanted to see a news media site cover space flight (specifically Shuttle, VSE and NASA) from an engineering standpoint, concentrating on breaking news and documentation that involved the communication between the engineers and managers and the general public who were interested.
The website went online in the summer of 2005, just before the first "Return to Flight" Space Shuttle mission (STS-114) following the Space Shuttle "Columbia" disaster.
NASASpaceFlight.com now has a team of 20 writers and web developers. 
STS-92 was a Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle " Discovery".
STS-92 marked the 100th mission of the Space Shuttle.
It was launched from Kennedy Space Center, Florida, 11 October 2000.