As supermassive black holes at the centers of galaxies suck in surrounding gas and dust, they can spew out huge amounts of energy. The brightest quasar we see in the visible range is which lies about 3 billion light-years away.
"A section of the Tarantula Nebula located within the Large Magellanic Cloud (LMC). The LMC is a small nearby galaxy that orbits our galaxy, the Milky Way, and appears as a blurred blob in our skies, according to NASA." Quoted from link
El Gordo, or "the fat one",lies some ten billion light-years away from us. It is the largest known galaxy cluster in the distant Universe and contains several hundred galaxies. New Hubble Space Telescope observations show that it is actually some 43 percent heavier than previously thought, with a mass some three million billion times the mass of the Sun. - Image Credit: NASA, ESA, J. Jee (University of California, Riverside, USA) - Image enhancement: Jean-Baptiste Faure
Supernova Shock Wave Paints Cosmic Portrait-- Remnants from a star that exploded thousands of years ago created a celestial abstract portrait, as captured in this NASA Hubble Space Telescope image of the Pencil Nebula.
Thor’s Helmet Nebula (NGC in the constellation of Canis Major. Credit and copyright: Rolf Wahl Olsen. At first glance, you might expect this beautiful image to be from a big ground-based observatory or even one of the space telescopes.