How to Decipher Ancient Egyptian Cities From Space?

i wanted to talk about some specific so we've got this broad outline of our our species, humans moving out of africa. And then the techniques i mention in the techniques that you use from space to detect these buildings, these cities, whatever we want to call them. I know in particular, there's the discovery of tannis, this lost city that was in a reference raiders of the lost ark writ this legendary city that you discovered ar europe, part of the discovery. So could you go through the details of how it is that you can use space baced observation to uncover something that we can't see from the ground? You would think it would be easier to go