CSI-like shows have spread the misconception that spy satellites can see human face sized objects in real-time. But there are certain physical limits that makes

CSI-like shows have spread the misconception that spy satellites can see human face sized objects in real-time. But there are certain physical limits that makes that unlikely to be done from space several hundreds of kilometers above the surface. That is why spy satellites at much lower altitudes can be useful to spy on other countries. However anything below 100 km is considered an intrusion into the sovereign airspace of a country.