"A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it."
In those white-heat-of-technology days every astronomy book had an early chapter which was invisibly entitled "Let's have a good laugh at the beliefs of those old farts in togas" (reality in those days being something called Zeta, a nuclear reactor that would soon be producing so much electricity we'd all be paid to use it).
"The advance of science does kill some romance. In 1950, it was still possible to think of a barely habitable Mars. There was still the possibility of canals, of liquid water, of a high civilization either alive or recently dead — at least there was no definite scientific evidence to the contrary."