Tyson

 Neil deGrasse Tyson writes - “As for conscious sex with Aliens, Captain Kirk of the original ‘Star Trek’ television series was quick to romance comely Aliens who were clearly female, but otherwise green or blue or some other skin color not found among Earth humans. In the 1960s this was entirely acceptable behavior on prime-time television. But when he and his (100 percent human) Nubian Lieutenant Uhuru kissed each other on the lips, in a brief scene of episode 10 season 3, the show received endless angry letters - especially from the American South - objecting to what was the first-ever kiss between a White person and a Black person on television. Sure evidence that race relations on Earth had much further to go.”

 (Little known fact - William Shatner refused to do a second take of this scene with a lighter kiss knowing that the romantic kiss would get edited out. Good man that William Shatner!)