Happy birthday to Hubble - Turns 17
Hubble celebrates its 17th anniversary and gives the world a big present—a 29,566 x 14,321
pixel image (500 MB TIFF image) of the Carina Nebula*. For those who don't feel like downloading the entire TIFF image, there is a JPEG available for download from the same site; however, it is still nearly 250MB in size(pretty big). If you click on the image shown here in this article, you will get a download-friendly version of the spectacular image.
This painterly picture brings the total number of images that Hubble has taken since 1990 to nearly 500,000.
(See a photo gallery of Hubble's top ten discoveries.)
To date, the telescope has made nearly 800,000 observations of more than 25,000 celestial objects and has traveled 2.4 billion miles (3.8 billion kilometers)—the equivalent of flying to Saturn and back.
* Note: The link to the image is NOT the full size image, but a page where you can download it or wallpapers of the image. The image Credit: NASA, ESA, N. Smith (University of California, Berkeley), and The Hubble Heritage Team (STScI/AURA)
Now watch this space below for some unique viewing experience !!
Observe the love for open source: (pretty amazing observation ) 
MathRockBrock writes on arstechnica article :
Anybody else notice the Firefox logo floating out there in Image 7, "The Carina Nebula from the ground"?
Note: First image unedited JPEG (except for the box). Second image cropped and resized only from the full-size NASA TIF. Third image from my desktop.