What kind of odd question is that?
If, as your tone implies, you believe that every teenager knows everything and it's not possible for some of them to have not heard or these things, then you must in fact be a teenager yourself.
If, as your tone implies, you believe that every teenager knows everything and it's not possible for some of them to have not heard or these things, then you must in fact be a teenager yourself.
Challenger was mentioned, but only because I brought in a newspaper clipping for the 20th anniversary.