For 4,000 Years, Termites Have Been Building Something Incredible in Brazil

[jberryhill]

1. "visible from space"

That phrase perplexes me.

What does it mean for something to be "visible from space"?

Where in space? Certainly, there are some places in space where such things are not visible. Or, looking at it another way, anything which is visible from anywhere in space is "visible from space" since there is no place which is not in "space", broadly speaking.

Satellites routinely have cameras which can resolve objects down to a foot or below. Is this supposed to mean that it is visible to the naked eye somewhere in some definition of "space"? And why would your naked eye be in space anyway?

It's a completely meaningless phrase which is supposed to convey some sort of "really big", but what it usually indicates is a profound shallowness of thought.