This gigantic image of the Triangulum Galaxy is a mosaic of about 54 different picture. The mosaic of the Triangulum Galaxy showcases the central region of the galaxy and its inner spiral arms. Millions of stars, hundreds of star clusters and bright nebulae are visible. It is the second-largest image ever released by the Hubble Space Telescope and too big to be displayed fully here. To see the picture in it's true splenour, click here.
NASA, ESA, and M. Durbin, J. Dalcanton, and B. F. Williams (University of Washington)