This was the first color image of earth ever taken from the moon, taken in 1968…
… the instant this photo comes out, it becomes the defining picture of the whole earth catalogue:
1970: the comprehensive clean air act is passed.
March, 1970: Earth Day became a holiday.
1970: environmental protection agency was founded.
1971: Doctors WIthout Borders was founded.
1971: Clean water act.
1972: DDT is banned.
1972: endangered species act.
1973: the catalytic converter gets put in.
1973: unleaded gas starts being used.
The vietnam war is still going on, and there is still chaos in the streets from protests and mass arrests and yet people still found the time to think about the earth as a whole.
That’s space exploration doing it’s part in influencing culture, and you cannot put a price on that.