Ancient Aliens

12:00 AM to 1:00 AM

Thursday 23 January

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 12:00 AM, Thursday 23 January.

Topics

Education ➝ Science ➝ Factual Topics

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