Baldassare Castiglione is your noble of the day. He’s also one of those charming renaissance men. He wrote a book called The Courtier. An interesting quote:

The courtier must be; noble, skilled at war, a good dancer, an excellent conversationalist, moderate at all times, graceful, elegant, good with his hands, artistic.

More debate on Pluto’s planethead:

Bacteria in the arctic is part of the search for life in Jupiter’s moons.

And some information on the fallout from the Facebook IPO..

Your daily dose of weird.