Gravitational lensing reveals distant galaxies

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.