http://www.spacewallpapers.net/ Space wallpapers and Astronomy site that offers the largest selection of free space wallpapers Astronomy Computers Desktops We are currently in the process of moving the website to a new host. You might experience some outages or errors while this takes place. If you experience any problems that don't resolve themselves within a few hours please let us know at spacewallpapers@gmail.com. http://www.spacewallpapers.net The two main players comprising Arp 87 are NGC 3808 on the right (the larger of the two galaxies) and its companion NGC 3808A on the left. NGC 3808 is a nearly face-on spiral galaxy with a bright ring of star formation and several prominent dust arms. Stars, gas, and dust flow from NGC 3808, forming an enveloping arm around its companion. NGC 3808A is a spiral galaxy seen edge-on and is surrounded by a rotating ring that contains stars and interstellar gas clouds. Credit: NASA/Hubble Heritage http://www.spacewallpapers.net/wallpapers/displayimage.php?pos=-599 A growing black hole, called a quasar, can be seen at the center of a faraway galaxy in this artist's concept. Astronomers using NASA's Spitzer and Chandra space telescopes discovered swarms of similar quasars hiding in dusty galaxies in the distant universe. The quasar is the orange object at the center of the large, irregular-shaped galaxy. It consists of a dusty, doughnut-shaped cloud of gas and dust that feeds a central supermassive black hole. As the black hole feeds, the gas and dust heat up and spray out X-rays, as illustrated by the white rays. Beyond the quasar, stars can be seen forming in clumps throughout the galaxy. Other similar galaxies hosting quasars are visible in the background. Credit: NASA http://www.spacewallpapers.net/wallpapers/displayimage.php?pos=-598