Ancient Aliens

7:00 AM to 8:00 AM
Thursday 22 May
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The Greys

Season 4 Episode 3 of 15

Experts investigate mysterious beings with big heads and eyes, whose images were found carved into rocks. Known as the 'greys', they are rumoured to be alien life forms

Ancient Aliens airs on Sky History 2 at 7:00 AM, Thursday 22 May.
Topics
Education ➝ Science ➝ Factual Topics
General