The first female astronaut, Mae Jamison, applied for the space program in 1983, the year this woman graduated from extremely left wing Oberlin College and moved to University of Texas. So from the beginning her chances of being the first black woman astronaut were pretty limited. Her web site and facebook page don't indicate that she got her masters. I can't find any record of her applying to NASA so that part is dodgy from the get-go.
Tyson got his MA in astronomy at UT in 1983 but according to Wikipedia "His professors encouraged him to consider alternate careers and the committee for his doctoral dissertation was dissolved, ending his pursuit of a doctorate from the University of Texas." It doesn't seem as if he was ever on the faculty there. He moved on to the University of Maryland in 1986 but the period 1983-1986 is, to us an astronomical analogy, a black hole.
What we may be seeing here is not actual sexual harassment but another example of the left eating their own.
I’m not saying I’m convinced he did it. I posted this less for “Tyson is a rapist” and more for “the left’s culture of accusing everyone of rape is finally causing them to eat their own.”