Hydranencephaly (or hydrancephaly) is a type of cephalic disorder. These disorders are congenital conditions that derive from either damage to, or abnormal development of, the fetal nervous system in the earliest stages of development in utero.
Voyage to the Bottom of the Sea Cast. 1  Stars (2) EDIT Richard Basehart. Admiral Nelson. 2  Guest Stars (287) EDIT Patrick Culliton. Dunlap. 3  Cameos (1) EDIT Seymour Cassel. Jensen. 4  Writers (29) EDIT Harlan Ellison. Writer. 5  Directors (21) EDIT Alan Crosland Jr. Director. 6  Crew (5) EDIT Peter Packer. Story.
The very barren bottom of the Mariana Trench had a visitor Sunday night: filmmaker James Cameron. After years of preparation, Cameron descended 35,756 ft. (10,898 m) beneath the oceanâs surface in his 12-ton lime green submarine called Deepsea Challenger. It was a mission filled with near constant danger.