There is currently no evidence to support this idea. In fact, it is highly unlikely that any galaxies we observe are reflections of our own, as the distances between galaxies are too vast for light to reflect back to us.
Gravitational lensing occurs when the light from a distant object is bent by the gravitational pull of a massive object, such as a galaxy. While this phenomenon can create distorted images of distant galaxies, it is not capable of creating a perfect reflection of our own galaxy.
There is no scientific evidence to support the existence of parallel or mirror universes, and even if they did exist, it is highly unlikely that they would be positioned in such a way as to create perfect reflections of our own galaxy.
No, there are no known cases of galaxies that have been confirmed to be reflections of our own. Galaxies are distinct and unique objects, each with their own characteristics and features, making it highly unlikely for any to be exact reflections of one another.
No, there is currently no active research or studies being conducted on the possibility of reflected galaxies. This idea is not supported by scientific evidence and is not a topic of serious scientific inquiry.