*Watch the episode where they land on the meteor to find those scientists and thier chemical.
*When they are about to land, one of the flyers scratches the back of his neck. (This is obvious because the leader asks him if he has a rash, and he says no.)
*Then it shows the back of his neck, and something crawls around and he scratches again.
*Then small fire flies burst out of his neck, proving he is not a roughneck...