Based on this animation I have some thoughts about what happened on the same page. Nothing new I am afraid, but the animation is cool. Check out the page and come back here to comment!
Update: I fixed the problem with the animated GIF height doubling by using a different program to do the conversion from AVI. It made for a much smaller file size as well, so it was a win-win.
Update: I heard that NASA might have found one of the carbon leading edge blocks last night, but nothing firm. Now ABC News is reporting it.