Mercury is something I will almost certainly never see in my telescope, so it's good that a big expensive NASA robot is flying around taking fancy pictures of it.
Behold!
What's interesting about this, apart from the "rays" stretching between the poles, is the fact that we've never seen an image like this of Mercury before. The MESSENGER craft is beaming back views of planetary features that have previously been visible only through much less dramatic radar imaging. Pretty cool stuff.
