Programming note: One more summer vacation

I'm headed off today for my other summer vacation, and will again be going totally offline -- no reading news, no blogging, no Tweeting, no unmannedspaceflight. I've written a few posts that will appear during my absence and have lined up a few guest bloggers; expect several more posts from Jason Davis as we lead up to the last space shuttle mission. I'll be back a week from Thursday. See you then!