In case you're wondering what the flecks are, apparently it's cosmic radiation and waves hitting the sensor (you have only to read the description to find out but not everyone does). At first I thought there were millions of little features in the rings!
Thanks, I was scanning the article for a mention of this but couldn't find it. I see now they also have retouched versions available when you click the "Full image and caption" link. I wonder why they didn't lead with those, I'm kind of used to images from/of space being (heavily) processed.
