8 people entered a sealed glass world believing they could survive for two years. Then the oxygen began to disappear | World News
Deep in the Arizona desert near Oracle sits one of the strangest experiments ever built, a sealed, 3.14-acre glass and steel enclosure called Biosphere 2. Constructed between 1987 and 1991 at a cost of roughly $150 million, funded largely by Texas billionaire Edward Bass, it was designed to test whether humans could live inside a…