I recently participated in a three-week-long, National Science Foundation-funded research cruise to the Mariana Trench. Our ...

The deepest regions of Earth's oceans, known as the abyssal and hadal zones, lie at least as far under the water's surface as ...

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Pagination 1 map : col., on linen ; 51 x 78 cm. Publisher s.n., Note FIRST only. Scale 1:720. "Sheet no. 2 - Secret". "Underground workings marked blue". Includes ...