In 1991 a group of countercultural visionaries built an enormous replica of earth’s ecosystem called Biosphere 2. When eight “biospherians” lived sealed inside, they faced ecological calamities and cult accusations. Their epic adventure is a cautionary tale but also a testament to the power of small groups reimagining the world.
Spaceship Earth is a 2020 American documentary film directed by Matt Wolf about the 1991 experiment that saw eight individuals spend two years quarantined inside of a self-engineered replica of Earth's ecosystem, dubbed Biosphere 2. The film premiered at the Sundance Film Festival on January 26, 2020, and was released in the United States on May 8, 2020, by Neon.