If Starship actually turns out like Musk has laid out it probably could just given it's size but yeah for now there's no extant vehicle that could service eithe

If Starship actually turns out like Musk has laid out it probably could just given it's size but yeah for now there's no extant vehicle that could service either. I bet we'll also start to see robotic servicing missions proven out which is another possible solution should JWST (or another telescope) need service.