For Your Astronomers: A Billion Stars Revealed [150 Billion Pixel Zoomable Image]
Link: IIPMooViewer 2.0 :: IIPImage High Resolution HTML5 Ajax Image Streaming Viewer: A Billion Stars
The picture doesn't look that promising at minimum zoom but zoom in a little and more detail will be revealed.
The full image contains 150 billion pixels, and the detail it contains is only revealed by the three zoom levels, which are centred on G305, a large and complex star-formation region. The innermost zoom covers a tiny fraction of the full image, but still contains more than ten thousand stars.
The bar at the top right of the screen contains a box that adjusts in size according to your current level of zoom against the full image. The box moves to follow your current zoomed view against the full image.