Antarctica news: How NASA spotted discovery ‘unlike any other’ exposed by melting ice

“But the Weddell polynya is unlike any other, while most polynyas form near the shore, this one is located hundreds of kilometres from the coast.

“Scientists first saw it in 1974, back then , the opening was as large as Oregon, but in 1976, the opening closed-up, seemingly for good.”

The video continued, explaining how the hole was spotted once more.

It added: “But, in 2016, NASA satellites spotted a small opening in the first sighting in over 40 years.

READ MORE: How scientists made ‘astonishing’ life on Mars discovery 

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