It is clear by now that the space is extremely hostile environment for biological systems.
A robotized HD high-speed telescope-digital camera on the surface of the moon could provide nearly real time imagery of the whole Earth surface. It could be very useful for mapping Earth.
Satellite imagery is spotty. Satellites have unstable orbits. They contribute to the space junk issue.
Good maps of Earth can do a lot, a lot of good to our planet, - to reduce traffic pollution, to fight fires more effectively, and so on and so forth.
Robots are smaller than humans. They do not require tanks of oxygen. So the smaller more ecological rockets can be used.