Official NASA photo: Mars Science Laboratory Launch Tweetup Participants (20111126)

via flickr.com

Taken a couple hours before launch last Saturday:

Front dead center: Bill Nye ("Science Guy", and now head of the Planetary Society), NASA Chief Admin Bolden. Front row, 9th in from the right, political cartoonist "Tom Tomorrow." You may recognize one or two others, too. :)

all sizes: http://www.flickr.com/photos/nasahqphoto/6421862363/sizes/l/in/photostream/