The Daily Star reports: Believer, Brett, likened it to something from famous alien movie Close Encounters, before claiming there is no CGI at play.
“It didn’t even look like a human at all.
“It possibly might be something with the government but it’s unexplainable.
“In my opinion these things come from another planet.”
Another fan then called up offering a different explanation.
“I just watched this four times and this Alien Grey, he moves a lot like a human.
“He looks like he’s wearing some sort of leggings or pants and his movements are very similar to a man’s – it looks like he’s working on the controls of the ship.”
Not everyone was as convinced by the footage, however.
“Nothing but light and mirrors,” one commented.
And another agreed, writing: “Looks like someone camping and using fluorescent tube lanterns to light the camp site.”
Meanwhile, a set of crop circles appearing in the English countryside has caused a stir.