Here you go: the astronaut photos were taken for a photo shoot for Harper's Bazaar in 1965. I don't know about the john pic, but if you visit the links you can see that Ringo was also photographed in an equally fun costume. No photoshop here! 
Richard Avedon Photos: April 1965 Bazaar
One of the most memorable fashion magazine issues of the 1960s was the April 1965 Bazaar. Richard Avedon was celebrating 20 years with Bazaar and was the Guest Editor and sole photographer.
A NEW sub-album entitled Bazaar Magazine, April 1965 - Photographer: Richard Avedon has been created in the History of Modeling Album: 60s Press - Articles and Books About the 60s for 11 of the pages. Here are 7 of them plus the front cover:
DOWNLOADIn the December 2009 Vanity Fair magazine, this iconic issue is featured in the article The Now of Avedon by David Michaelis:
The Now of Avedon
When photographer Richard Avedon edited a special issue of Harper’s Bazaar, in April 1965, it wasn’t simply fashion—it was the future. Recalling Avedon’s prophetic mix of Space Age, multi-racial youthquake symbols (the Beatles! the Astronettes! Jean Shrimpton!), David Michaelis tells how America’s national portraitist rejuvenated his career.
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