Gravitational lensing magnifies light from very distant objects. Without them it would be impossible to see them. In this image of the galaxy cluster called MACSJ0138.0-2155, we are shown two views of the same galaxy MRG-M0138. Although this galaxy is approximately 15 billion light-years away, we can see it as its light is magnified by the curvature of the space-time grid. The curvature is produced by a very massive object, in this case a cluster or set of many galaxies, which are between MRG-M0138 and us, which modifies the path followed by the light coming from this galaxy, causing it to appear, repeated and distorted giving us the illusion of fireworks in space.
