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muriel_volestrangler

(105,192 posts)
12. 500m + 252m is very nearly half a mile
Wed Nov 12, 2025, 05:36 PM
9 hrs ago
Beneath approximately 500 m of ice, we used an acoustic sensor to image a 252-m high water-filled grounding-zone channel

https://www.nature.com/articles/s41561-025-01687-3

So they drilled through about 1600 feet of ice; the base of the channel is about 750 metres down - half a mile being about 800 metres.

I'd have put 252 metres as more than "a 30-story building".

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