A long time ago I had a post on raw images in astronomy are turned into usable data followed by another on how those are turned into pretty pictures.
I did my best to provide some pictures to illustrate what I was talking about, but they weren't anything exciting. What would be really exciting is if you could see this for something really cool. Like a Hubble image.
Turns out, you can! PBS put together a wonderful little flash on how the amazing Hubble images are made. It's the exact same as what I talked about (plus the image aligning since you have to combine images) but in a much flashier format.