A space-based solution won't get you such a large dish. And that means you can't get effective 20 terawatts of output power for active radar across the solar sy

A space-based solution won't get you such a large dish. And that means you can't get effective 20 terawatts of output power for active radar across the solar system. https://en.wikipedia.org/wiki/Arecibo_Observatory#General_information https://en.wikipedia.org/wiki/Arecibo_Observatory#General_in...