We can see a natural phenomenon called ‘cosmic lensing’ occurring at the centre of the picture of space. Cosmic lensing happens when two galaxies are lined-up, one behind the other, as we look at them in the sky. The light from the distant galaxy is bent around the nearer one, because of gravity. Instead of the distant galaxy being hidden behind the nearer one, we sometimes see many lensed images of the same distant galaxy.
ESA/Hubble, NASA, Suyu et al.