“TV pin-up school” from ART Photography magazine (which seems to be a thinly veiled girlie mag), 1952 via hollyhocksandtulips
“Space Pioneer”, Time Magazine cover by Boris Artzybasheff for the December 8, 1952 issue and the article "Journey Into Space":
The youngsters have already zoomed confidently off into the vast ocean of space; they can buy space suits, space guns and rockets in almost any toyshop. In 50-odd science fiction magazines, space travel is a favorite theme. Eight comic strips and at least two TV programs are flying through space.