Tycho, the shining jewel on the neck of the lady in the Moon

What? You don't know about the lady in the Moon?
Look closely (and you may have to step back from the monitor a few feet), and there's a lady in profiile, with the Tycho crater a diamond pendant on her neck.






Trust me. Well, that's just an introduction to the next picture, which is a closeup of Tycho, and a link to the NASA article, with an even closer close-up of the floor of Tycho crater.





The floor of Tycho crater