The Challenger Expedition ... trawled as deep as 26,000 feet and pulled up more than 4,000 unknown species. The strange creatures, many of which were gelatinous and didn't survive the trip ...

Finding anything at the bottom of Challenger Deep, the deepest point on Earth, is extremely exciting for scientists.

Compared with other submersibles, DEEPSEA CHALLENGER was an aquatic rocket ship. Deep-diving craft tended ... dozens of gigantic amphipods, prawnlike creatures with eerie white shells.