Biosphere 2
Suomi فارسی Tiếng Việt Українська 日本語 Português Español Русский Română 한국어 Français 中文 Polski Magyar Svenska العربية Nederlands Slovenščina Euskara Deutsch Italiano Norsk (Bokmål) Türkçe עברית
Biosphere 2 is an American Earth system science research facility located in Oracle, Arizona. Its mission is to serve as a center for research, outreach, teaching, and lifelong learning about Earth, its living systems, and its place in the universe. It is a 3.14-acre (1.27-hectare) structure originally built to be an artificial, materially closed ecological system, or vivarium. It remains the largest closed ecological system ever created.
