This video of a disc-shaped craft was recorded in the sky above Belgium on Friday, 25th April 2014.
The all-black plane has a distinctive, zigzagging shape and a low profile designed to make it hard to spot on radar.
New video footage an unknown object flying over Colima Volcano, Mexico on 15th August 2015.
Scientists have detected two vapour jets appearing for up to seven hours
Researchers might have found the Holy Grail in the war against cancer, a miracle drug that has killed every kind of cancer tumor it has come in contact with
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