But this shows the kind of detail the current generation of spacecraft, like TRACE, can see on our Sun.

http://vestige.lmsal.com/TRACE/Public/eduprodu.htm
The "Transition Region and Coronal Explorer" spacecraft (or TRACE) is one of the small spacecraft that's part of NASA's "quicker, faster, better" initiative. But there's nothing small about the amazing close-up images it's already returned.