*goes to check* Is it the one called HI-SEAS? Yes, apparently it's NASA's.

And after reading the biographies and that they all were scientists I wondered why no doctor... what if someone gets ill? What if someone gets a toothache? If it is really life threatening, obviously they can stop the experiment, but it is meant to be like under real conditions.

I also had to think about that woman in Antarctica who operated her own breast tumor as they couldn't fly her out for months.