What divergences from OTL would a TL require in which the public viewpoint and government policy of science and technology around the world remains like in OTL 1945 to roughly 1975±5 years.
For example:
-Western countries and former (or current) East Bloc countries retain a "Nuclear optimist, Fallout-style" design in aesthetics, such as rocket ship and space probe-like buildings, the Atomic Model as a popular design motif etc.
-People are positive about nuclear energy as being better environmentally than fossil fuels and more reliable than renewable energy
-Nuclear weapons are seen in a positive light, as devices which bring about peace by deterring both conventional wars, and Mutually Assured Destruction
-Consumer safety regulations are more lax, for example a company could market a betavoltaic battery-powered nuclear smartphone which you would never have to recharge
-Regular space travel to the Moon continues after 1972, eventually Soviet, Chinese, and Indian astronauts also land there. By now there is some kind of Moon Base
-A Manned mission to Mars is seriously planned or has already taken place
-Space exploration is still as mainstream in popular culture as during the OTL Cold War
For example:
-Western countries and former (or current) East Bloc countries retain a "Nuclear optimist, Fallout-style" design in aesthetics, such as rocket ship and space probe-like buildings, the Atomic Model as a popular design motif etc.
-People are positive about nuclear energy as being better environmentally than fossil fuels and more reliable than renewable energy
-Nuclear weapons are seen in a positive light, as devices which bring about peace by deterring both conventional wars, and Mutually Assured Destruction
-Consumer safety regulations are more lax, for example a company could market a betavoltaic battery-powered nuclear smartphone which you would never have to recharge
-Regular space travel to the Moon continues after 1972, eventually Soviet, Chinese, and Indian astronauts also land there. By now there is some kind of Moon Base
-A Manned mission to Mars is seriously planned or has already taken place
-Space exploration is still as mainstream in popular culture as during the OTL Cold War