Originally Posted by lightning
It must have cost a fortune to build that.
Is it really worthwhile? It seems you cannot go into the underwater parts of the ship so what is the point of it?
I mean, there must be a point, but I don't see it.
Its not a "ship", its essentially a giant live-aboard scientific buoy. The draft when tipped up is deep enough to be unaffected by local wave action.
Was built way back in the 1960s, back when Piccard was conducting bathysphere dives in the Marianna trench and other such naval research. I'm not sure anyone would bother to build anything like that today given autonomous buoys & gliders, and the development of remote sensing satellite technologies.