"Alex Kilpatrick" wrote in message
...

I thought of this after the previous question about whether a telescope
could see any of the apollo stuff on the moon.

If you were standing on the moon with an average telescope (say 8"),
could you see any man-made landmarks on Earth?

If you look he

http://www.snopes.com/science/greatwal.htm

Alan Bean is quoted as saying that no man-made object is visible from
the moon, but he didn't use a telescope.


Alex

When observing Earth's night side, it should be possible to see lights
from cities and major highways. On the daytime side, it may be possible
to see airport runways, if sufficient contrast with surroundings, sunlight
reflecting off glass or swimming pools, and almost certainly long shadows
cast by the Great Wall of China.

Cheers,
Larry G.