Beginning in 1987, a new glass and metal structure began to rise in the desert near Oracle, Arizona. In 1991, it opened as the world’s largest closed ecological system. It was called “Biosphere 2” because planet Earth is “Biosphere 1.” The idea behind the project was to test whether a closed system could support human life on another planet. This marked the start of a two-year mission in which eight people were isolated inside this artificial biosphere to simulate life on a space colony.
The experiment in Biosphere 2 ran from 1991 to 1993 with only limited success. It was attempted again for six months in 1994. Both attempts encountered technical issues and the strain of human group dynamics. Additionally, during the second try, the company managing the experiment was dissolved, leaving the project in limbo. Initially, Columbia University took control of the facility and used it for scientific research until 2003. When it seemed Biosphere 2 might be demolished for urban development, the University of Arizona (UA) took over in 2007 and gained full ownership in 2011.
Today, about 100,000 tourists visit Biosphere 2 each year while UA continues to conduct experiments there. One of the experimental areas is the Landscape Evolution Observatory (LEO). It consists of three artificial landscapes, each measuring 30 by 11 meters with a 4-meter depth of crushed basalt rock from a volcanic crater in northern Arizona. The scientists aim to observe how these landscapes change “from purely mineral and abiotic substrate to living, breathing landscapes that will ultimately support microbial and vascular plant communities” (UA’s words).
I wonder how the researchers could be sure that the one million pounds of basalt from a volcanic crater could be “abiotic,” meaning free of any life forms. However, if microbes or seeds are present, I believe the landscapes will “evolve.” The key is that for any life to develop, it must already be there. Evolution is change over time, but the development of life requires initial life to exist.
The UA scientists explain that the evolution of cyanobacteria—the first microscopic organisms to use photosynthesis—pumped oxygen into the atmosphere, facilitating the development of aerobic life. This paved the way for multicellular life, an ozone layer to shield life from harmful ultraviolet radiation, and weathering to break down rocks into soil.
Considering the history of Biosphere 2, I doubt it will be around—or that the scientists will be—long enough to observe significant evolution. It takes time for rocks to break down into soil. They describe the “process of primary succession,” where simple microbes expand into organisms of increasing “complexity and biodiversity.” The researchers state that photosynthesizing cyanobacteria will capture nitrogen from the air, preparing the way for mosses to grow. The next step involves “colonization by larger plants with roots,” and the primary succession continues.
Long before Biosphere 2, Genesis 1:11-12 details the process of primary succession: “And God said, Let the earth bring forth grass” (Hebrew deshe, meaning tender grass such as lichen or algae), “the herb yielding seed” (Hebrew eseb, meaning naked seed or gymnosperm), “and the tree yielding fruit” (Hebrew ets, meaning tree, wood, or timber). The process of primary succession then continues. (For more on this, see John N. Clayton’s booklet “God’s Revelation in His Rocks and His Word.”)
As the UA scientists describe in their explanation of LEO, “The Earth system consisting of air, water, soil, plants, and microbes is a complex, interacting system.” And so it is, as God revealed to Moses thousands of years ago. Complex, interacting systems require an intelligent Designer.
— Roland Earnst © 2025
References: theconversation.com and biosphere2.org
