The Art of Science

I do love posting pretty pictures on the blog, for many reasons. Of course, they're pretty--that's part of the point. But a picture is worth a thousand scientific words: Behind every image is a scientific principle or two, something worth digging into a little bit. If a beautiful photograph of a galaxy or star cluster gets somebody's attention, then maybe I can get a couple of minutes to show them something they never knew before. I have no problem with that. Recently, I posted a devastatingly b...