As a kid, I admired the NASA space program and the astronauts. These days, when the history channel & Nat Geo airs the NASA documentaries, I tend to watch them again. Great testimony to what human determination can do.
To the OP: your thread title hurts my brain! Maybe "Astonauts you have met" would get the point across more eloquently. "Who has met who concerning Astronauts" sounds like the title of a paper of a B-average sophomore philosophy student...
Just sayin'
-Z