Credits (image licensed under the Creative Commons “Attribution” 3.0):
Ethan: http://www.flickr.com/photos/42353480@N02/3911235743/
NASA & Jim Keller: http://www.flickr.com/photos/jimkster/832581974
Jay: http://www.flickr.com/photos/89649959@N00/5275093636/

Vintage ad: http://hicventerhicsalta.files.wordpress.com/2010/06/i-dream-of-jeanie-with-the-light-brown-weighted-hair.jpg