NASA recently released hundreds of high resolution film scans from the Gemini space missions, which took place in 1965 and 1966.
I've gone through the database and made iPhone wallpapers out of what I thought were some of the best photos. The wallpapers are made for iPhone 4 and 4s with retina displays.
Sept 15th 2013 Update:
Since posting this on Reddit a few weeks ago, It's gotten tons of traffic! That imgur gallery I posted now has 180,00 views. Great Success!