Chad Orzel at Scienceblogs.com has a fun article on "Goodnight Moon" and a bunny that says good night to a lot of stuff and tackles the question everyone has - how long does it take to say goodnight to all that stuff?

Using the awesome power of science, he lets us know ... 

He's also doing the blogging event for the educational charity DonorsChoose so if you want to donate and help under-funded schools, here is the direct link.