Those other locations still be susceptible to stray radio transmissions, especially an Earth orbit which would also have issues with Earth's ionosphere. All th

Those other locations still be susceptible to stray radio transmissions, especially an Earth orbit which would also have issues with Earth's ionosphere. All that moon rock is going to be a great radio insulator. I also imagine there are cost savings by having it sit on the surface of a moon than being its own satellite. No need for worry about orbit corrections or strict weight limitations. The Tsiolkovskiy crater is pretty flat and would make a good candidate for a telescope which would have long antenna arrays laying on the surface.