Measuring almost seven miles (37,000ft) deep,, the Mariana Trench is so deep that few have ventured down there. However unusual sounds recorded from the Mariana Trench sparked fears of an alien ...
The mysterious noises coming from the Mariana Trench have finally been explained — after fears that the spooky sounds were an alien invasion. Hailed as one of the most mysterious places on Earth, the ...
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