what man made artifact can be seen from the Moon?

Not with the naked eye.

What can be seen on the moon? Cellulite

:wink:

This.
As seen from the moon, the Earth is about the size of a US quarter held at arm’s length. The 150 mile wide Aral Sea plain would be like a speck of dust on that quarter.

Several hasselblad cameras?

What wall can be seen from space?

[spoiler] The India/ Pakistan border fence. It’s so brightly lit up it can be seen from orbit at night.

(Probably not from the Moon, though)

[/spoiler]

I was thinking about from the Space Station. But yeah, from the surface of the Moon, using just regular human vision, Earth is like the size of a dime held out at arms length. You ain’t seeing nothin’.

Space boots

Probably boot prints as well, and if I recall, a white flag or two.

The agricultural belts on a few continents. The diminished polar ice cap.

As markn+ said, it’s more like a quarter. About 0.03 radians, or 2 degrees, or about four times the diameter of the Moon. I can see “continent size” features on the Moon just fine; with 4x the size, you could see significant detail within continents.

Ah, when you wrote “lighting array”, I thought “the structured cloud of artificial light around high-density metropolitan areas”. Something like this. If you’re standing on the Moon and looking at the dark side of Earth, maybe you see some yellowish light ?