Can Gravitational Lenses Be Focused?
I'm going to step above my (science) pay grade with an idea. Perhaps it is already being worked on and I just have not heard of it - quite likely. And perhaps it can't be done; although it seems to me that it could be done.
A couple of years back Hubble captured some images from not long after the big bang. It was able to capture this via the assistance of a gravitational lens, which magnifies light as it bends around a massive object(s), in the case of these images a cluster of galaxies. Essentially this magnification gives a boost to an already powerful…