Some of the images this page links to will hurt your browser bad if you click to display them.
You probably want this Flash-based zoomable version, where you can drag the image around nad use your scroll wheel on individual parts to zoom in on them. Marvel as tiny specks of light turn into star clusters, with each star being roughly as large as our own Sun on average (given that our Sun is about average-sized, correct?).
For reference, ‘Giga-’ means ‘multiply by one billion’ (American ‘billion’, so a one with nine zeroes after it). A 9 Gigapixel image has nine billion [del]points of light[/del] individual dots (picture elements, hence ‘pixel’) to it. And this image still only hits the highlights, as it were.