Robots get go-ahead to save Hubble.

Hubble has been and still is a fantastic instrument, but with the price of this robot flight NASA could build several successors to Hubble. And considering how difficult the mission would be, it could quite possibly fail. Far better would option would be to built a true successor for Hubble, that would study, like Hubble, optical and ultraviolet light - those wavelengths that the James Webb Space Telescope nor other coming space telescopes wouldn´t.