Humans could soon live underwater, in these deep sea habitats

Mashable recently visited DEEP's campus – the company building deep sea habitats with the mission to get people to live under water by the end of this decade.
We'll take you underwater in a submarine to see where the habitats will first be tested, then we’ll go inside Sentinel – one of the two habitats DEEP is currently developing, and explore the history of the technology, as well as what it could mean for the future of marine biology and deep sea exploration.