The researchers say the presence of iron - along with levels of nickel and cobalt - "strongly suggests an extraterrestrial origin".

Tutankhamun (1336 BC - 1327 BCE)
The 11th pharaoh of the 18th dynasty of Ancient Egypt
Made famous by the discovery of his completely intact tomb by the British archaeologist Howard Carter in 1922
He was about 17 when he died and was likely to have inherited the throne at the age of eight or nine
Chief achievement during his short time on the throne was repairing the damage inflicted upon the temples of Amun during his father Akhenaten's tenure
Uncertainty still surrounds Tutankhamun's death. He may have been assassinated, or died as the result of an injury received while hunting
http://www.bbc.co.uk/news/world-middle-east-36432635