The Hubble Space Telescope has taken a photograph of some of the earliest and most distant galaxies in the universe، as the Technical Times said. As part of the mission called Beyond Ultra-Deep Frontier Fields And Legacy Observations or BUFFALO، Hubble pointed its lenses toward a massive galaxy cluster named Abell 370 located 5 billion light-years away from Earth. The photograph also revealed numerous other galaxies that lie far beyond Abell 370. To take the amazing shot، Hubble used the galaxy clusters as "natural telescopes" that amplified the distant galaxies and supernovas. Because these galaxies are so far away and their lights were so faint، it was difficult to photograph and observe them without a boost. The cosmological trick called gravitational lensing allowed Hubble to see across the Universe. It works by distributing matter، in this case، a cluster of galaxies، between the observer and a distant source، bending and manipulating the light coming from distant background galaxies that otherwise could not be detected even with the telescope's sensitive vision. The feature dubbed as "the Dragon" is the best demonstration of gravitational lensing. Just below the center of the cluster is an extended feature that is made up of several duplicated images of a spiral galaxy forming an arc.