The 1950’s were a sick, nutty time for sure, now, I wasn’t around back then, but I have seen all the TV shows and alien invasion movies.  At this point most people believe this was a hoax for various reasons.  The best reasoning is in the medical evidence, there really wasn’t any and the aliens look pretty fake to begin with. I mean, even a very un-medical person like me can look at this and see the alien has muscle tone to die for… hard to pull off for most corpses. But, I gotta admit, the facial expression is a classic.