Huge optics is one option https://en.m.wikipedia.org/wiki/Synthetic-aperture_radar https://en.m.wikipedia.org/wiki/USA-215 Things in space can often be seen with a good from the ground.
Huge optics is one option https://en.m.wikipedia.org/wiki/Synthetic-aperture_radar https://en.m.wikipedia.org/wiki/USA-215 Things in space can often be seen with a good from the ground.