When will we be told of the real people who built GOBEKLI TEPE?

Why don't you ask archaeologists? They are the ones who spend their time rummaging around ancient ruins. Why the f would you ask astrronomers?

The truth is that such an idiotic rant has NOTHING to do with this section.

When they have to come back because 
one of them left their toothbrush behind.

Gobekli tepe is undoubtedly, a  unique, and anachronistic site --its stone monoliths etc ,apparently predating the likes of Stone Henge ,by many thousands of years .

But it's unlikely that any prehistoric "civilisation" was involved -- but remarkably , just groups of farming / hunter gatherers ,who collectively came together here for  unknown ,"religious" purposes. 

That said -- there is no extra -terrestrial connotations