Spotted: A black hole that shouldn't be physically possible
Actually nothing outside our solar system is fully known but this thing might be a black hole too big to be possible
Nothing new, they are clueless and every new discovery invalidates previous facts
Again I have to say you don't understand science. I believe I've said this before, it's a journey not a destination. In other words we know we don't know everything, and we will continue to discover new things that we don't immediately understand. And what's more, we like it that way.
As far as "a discovery not known to science": Every new discovery was at one point not known to science. That's how it works.