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Piece by piece, the depths of the oceans around the world – the knowledge of which has always been one of the most exciting challenges for man – continue to reveal themselves to the eye of scientists. To date, 20.6% of the submerged surface has been mapped, with a small but significant increase (thanks to the pandemic) compared to 19% last year: on such large dimensions, however, even + 1.6% constitutes a plus important, equal to half the area of the United States.
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