Largest ever galaxy portrait - HD image of Pinwheel Galaxy

This new Hubble image reveals the gigantic Pinwheel galaxy, one of the best known examples of "grand design spirals", and its supergiant star-forming regions in unprecedented detail. The image is the largest and most detailed photo of a spiral galaxy ever taken with Hubble.

Credit:
Image: European Space Agency & NASA

Top 100 Screen Size to download (ZIP file, 25MB) :
http://www.spacetelescope.org/static/images/zip/top100/top100.zip

Source : http://www.spacetelescope.org