The Comics Code Authority
In 1956, the CCA did not want the publisher of Entertaining Comics to show a Black astronaut going to an alien world where there was alien segregation. In the story, the astronaut was to be a mediator and peacemaker, but the CCA did not want to show Black males in a position of power.
THEY SURE DIDN'T SELL ANY IN BURKE COUNTY WHERE I GREW UP!
Didn't make it to West Coast.