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Spaceflight Standard Measures: Microbiome (SSM_Microbiome)
Principal Investigator
Research Area:
Gastrointestinal physiology
Species Studied
Scientific Name: Homo sapiens Species: Human


Microbiome is one of nine Spaceflight Standard Measures conducted on International Space Station (ISS) crewmembers. Spaceflight Standard Measures are a set of core measurements, representative of many of the risks experienced by astronauts before, during, and after spaceflight. The purpose of this project is to populate a repository with data that enables high-level monitoring of countermeasure effectiveness and meaningful interpretation of health and performance outcomes. These standard measures will also support future, hypothesis-driven research that enables planetary missions by providing an optimized minimal set of measures captured from all ISS crewmembers until the end of the ISS program. These measures will be available to other studies under data sharing agreements as well as undergo analysis for trends in the astronaut population.

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Immune system
Virus activation

Data Information
Data Availability
Archiving in Progress. Some restricted access data exist for this experiment.
Data Sets+ Request data

C-reactive protein, salivary
DNA, nasal cavity
DNA, oral cavity
DNA, skin
Epstein Barr virus (EVB) DNA, saliva
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Expedition 57 10/04/2018 12/20/2018 77 days
Expedition 58 12/18/2018 03/14/2019 85 days
Expedition 59 03/14/2019 06/24/2019 102 days
Expedition 60 06/24/2019 10/03/2019 101 days
Expedition 61 10/03/2019 02/06/2020 126 days
Expedition 63 04/17/2020 10/21/2020 187 days
Expedition 64 10/21/2020 04/16/2021 177 days
Expedition 65 04/16/2021 10/17/2021 184 days
Expedition 66 10/17/2021 03/30/2022 164 days
Expedition 67 03/30/2022 In progress

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Institutional Support
National Aeronautics and Space Administration (NASA)
Alternate Experiment Name
Proposal Date
Proposal Source