Exploring Biosphere 2: A $200M Experiment in Closed Ecosystems

Added:

Biosphere 2 Tour
Failed Experiment
Research & Lungs
Ocean & Reflection
Symphony's Story
Future Gift

Biosphere 2 Tour

3:32
Playing Section
  • 1

    Explores the massive closed ecosystem facility in Arizona.

  • 2

    Details its goal to replicate Earth for space colonization research.

  • 3

    Describes its contained rainforest, ocean, and desert environments.

Basic principles of biogeochemical cycles (carbon, nitrogen, and oxygen cycles) and how they maintain atmospheric balance.
The concept of closed vs. open thermodynamic systems, specifically how matter is recycled while energy flows through.
Fundamentals of photosynthesis and cellular respiration, and how these processes balance gas exchange in an ecosystem.
An understanding of food webs, trophic levels, and biome classification (e.g., rainforests, deserts, oceans).
Advanced design of Controlled Ecological Life Support Systems (CELSS) for long-duration space missions and colonization of Mars or the Moon.
The study of concrete carbonation and soil microbiology's impact on atmospheric composition in sealed environments.
Synthetic ecology and ecosystem engineering, focusing on how to construct stable, artificial ecosystems from scratch.
The psychological and sociological impacts of long-term isolation on small crews in confined environments (ICE dynamics).
7.4M views307.4Klikes16:09@YesTheoryOriginal Release: 2020-07-30

Biosphere 2, a 3.14-acre closed ecosystem built in the Arizona desert, was designed to replicate Earth's environments (including rainforest, ocean, and desert) as a prototype for space colonization; however, during the 1991-1993 experiment where eight researchers lived inside for two years, oxygen levels dropped dramatically due to unexpected factors like active soil microbes consuming oxygen and uncured concrete undergoing chemical reactions, revealing how difficult it is to accurately replicate Earth's complex ecological balance in controlled environments.