Opinion:
Toberla
If in the future the Hubble Telescope needs replacement can we improve it and push it to the Orbit somewhere Neptune or Uranus. Then we leave a telescoping relay communication plus telescope somewhere Saturn. In this way we continously studying planets, asteroids and comets even distant stars. We need to have robots manning this satellite plus numerous computers independent of its others but with same function.Computers will take each others function if malfunction happen. Then this satellite runs on nuclear battery not just one.In this way we spend a lot but save in continous use.