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.
According to NASA, this is a Hubble image of an enormous bubble being blown into space by a super-hot, massive star. This feature is called the Bubble Nebula. (Photo: NASA, ESA, and the Hubble Heritage Team )