What on Earth?

Sky History 2 HD

6:00 PM to 7:00 PM

Thursday 29 January

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Experts investigate the startling mysteries captured by satellites. Sky gods and human sacrifice haunt a mysterious mound in Peru, Typhoid Mary and her New York island prison, Nasa disasters, airborne laser weapons and ancient tombs in the Sahara, a weird pattern in the Arctic ice that has strange parallels to mystery markings found on Mars