| gptkbp:instanceOf | gptkb:scientific_research 
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                                | gptkbp:area | 3.14 acres 
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                                | gptkbp:cabinetType | glass and steel structure 
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                                | gptkbp:conductedBy | gptkb:Space_Biospheres_Ventures 
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                                | gptkbp:currentUse | gptkb:research_institute 
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                                | gptkbp:ecosystemsIncluded | gptkb:agricultural_policy gptkb:forest
 fog desert
 human habitat
 mangrove wetlands
 ocean with coral reef
 savannah grassland
 
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                                | gptkbp:endDate | 1994 
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                                | gptkbp:followedBy | gptkb:Biosphere_2_second_mission 
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                                | gptkbp:inspiredBy | gptkb:Biosphere_1_(Earth) 
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                                | gptkbp:location | gptkb:Oracle,_Arizona,_United_States 
 | 
                        
                            
                                | gptkbp:notableFor | CO2 level fluctuations atmospheric management challenges
 food production issues
 self-sustaining life support
 social dynamics among crew
 
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                                | gptkbp:owner | gptkb:University_of_Arizona 
 | 
                        
                            
                                | gptkbp:participants | 8 
 | 
                        
                            
                                | gptkbp:purpose | study closed ecological systems 
 | 
                        
                            
                                | gptkbp:relatedTo | space colonization research 
 | 
                        
                            
                                | gptkbp:startDate | 1991 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:Space_Biospheres_Ventures 
 | 
                        
                            
                                | gptkbp:bfsLayer | 6 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | Biosphere 2 experiment 
 |