The portrait of Stephan's Quintet, also known as Hickson Compact Group was taken by the new aboard NASA's HST as one of the first images since its May 2009 overhaul. Stephan's Quintet, as the name implies, is a group of five galaxies.
Star Formation in the Tadpole Nebula Image Credit: WISE, IRSA, NASA; Processing & Copyright : Francesco Antonucci: Dusty emission in the Tadpole nebula, IC lies about light-years away in the northern constellation Auriga.
ESO's Visible and Infrared Survey Telescope for Astronomy (VISTA) has captured this unusual view of the Helix Nebula (NGC in this space wallpaper. The Helix Nebula is a planetary nebula located 700 light-years away.
Monster ProminenceCredit: NASA/SDONASA's Solar Dynamics Observatory captured this view of a powerful Class solar flare on Feb. 2011 during a sun storm. NASA scientists called the display a "monster prominence" that kicked up a huge plasma wave.