DOURING our southern cruise the sounding-lead brought up five absolutely distinct kinds of sea-bottom, without taking into account the rock and detritus of shallow soundings in the neighbourhood ...

“Let’s move forward.” The expedition regrouped in Papua New Guinea, where, on February 21, DEEPSEA CHALLENGER finally swung over the rail on its first deepwater launch. From the moment the ...

Other geographic highlights include Atlantic and Antarctic material. A largely historic collection, the non-reef corals are from important deep-sea expeditions such as the Challenger Expedition, the ...

The depression is named after the British Royal Navy survey ships, HMS Challenger, whose expedition between 1872 and 1876 first located it and HMS Challenger II whose 1950-52 expedition ...