I have never watched it but I guess I need to.
The subject intrigues me because if you think about the way the universe is, with the number of stars, the age of the earth and the distances, it is likely that anyone who visited did it long ago when humans couldn't comprehend what they were. How long have we even understood what the stars truly are? 500 years? So anyone who would have come here before that time might have been passed off as a monster, magical being or some other shit like that.
"I find that the harder I work, the more luck I seem to have." - Thomas Jefferson (1743-1826)
"There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." - Ed Howdershelt