The article features the creation of the next generation deep-diving submarine called Alvin. It says that Alvin caters only 63% of the ocean and the need to see 98% of the sea requires diving to 6,500 meters or more than 4 miles. It notes that the National Science Foundation (NSF) has given funds to Woods Hole Oceanographic Institute (WHOI), a center that operates the use of deep-sea exploration vehicles for U.S. research.