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https://www.nasa.gov/vision/space/workinginspace/great_wall.html https://www.nasa.gov/vision/space/workinginspace/great_wall....
by fennecfoxen 5y ago
https://www.nasa.gov/vision/space/workinginspace/great_wall.html https://www.nasa.gov/vision/space/workinginspace/great_wall....
- jessriedel 5y agoThat's about seeing things in photographs taken from space, not things seen with the naked eye. Like, we've all seen satellite reconnaissance photos, so we know those can see lots of important stuff.