Sharpest ever view of the Andromeda Galaxy HD

On January 5th, 2015 the NASA/ESA Hubble Space Telescope released the biggest image ever taken of the Andromeda Galaxy... The resulting image is 69,536x22,230 pixels... a total of 1.5 billion pixels, requiring 4.3GB of disk space. It provides a startling glimpse at the sheer scale of our nearest galactic nieghbor... Download image here: http://www.spacetelescope.org/images/heic1502a/