Back view of Atlantis, a photo by Cwiddy on Flickr.

The last shuttle ever to fly getting towed to the VAB.

MercHouse2_RSS_Retraction, a photo by rmiriam12 on Flickr.

In front of the shuttle.

Space Shuttle Endeavour STS-134 (201105150010HQ), a photo by nasa hq photo on Flickr.

If you look at this picture, straight out the middle there is a brownish field next to a body of water. That’s where the NASATweetup folks stopped and watched the retraction happen.

STS-134 Tweets Launch Day (201105160001HQ), a photo by nasa hq photo on Flickr.

These women were great, they created the no U turns signs. I was standing just to the right of them as the picture was taken.

STS-134 Endeavour Launch (201105160008HQ), a photo by nasa hq photo on Flickr.

I really love how these guys are in suits – it just commands respect when people dress well.

The shuttle, a photo by Lucien W. Dupont on Flickr.

Our view.

A busy airport, a photo by Lucien W. Dupont on Flickr.

Denver international.

, a photo by Lucien W. Dupont on Flickr.

Praying for a safe and spectacular launch on Monday morning.