Plant Biology

Understanding The ‘Spaceflight Treatment’ In Plant Space Biology: Experimental Practices, Metadata Workflows, And Data Re-analysis

By Keith Cowing
Status Report
Studies in History and Philosophy of Science
December 28, 2025
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Understanding The ‘Spaceflight Treatment’ In Plant Space Biology: Experimental Practices, Metadata Workflows, And Data Re-analysis
Representation of metadata factors grouped as environmental factors, operational constraints, experimental design, and assay type for dataset GLDS-37. We exclude the metadata categories that were not populated for this dataset. — Studies in History and Philosophy of Science

The boundaries between targeted interventions, background factors, and confounders are concerns in all biological experimentation.

Plant space biology takes these concerns to new territories not just geographically but also epistemically because of the operational constraints of collecting data in the multi-stressor spaceflight environment.

In consequence, a central challenge in this field is the disentanglement of the various factors involved in the experiments and their tracing to biological effects on the plants. This paper characterizes the unique challenges of fundamental plant biology experiments and examines how secondary data analysis relying on metadata curation is providing novel ways to interpret, compare, and potentially integrate results obtained in these experiments.

We propose an understanding of metadata workflows in comparative analyses of complex datasets as a form of post hoc experimental control that makes data tractable for interpretation in three ways: by providing a picture of the relevant intervening factors in experiments, refining the realm of comparison by keeping some conditions constant as background and others targets of analysis, and distinguishing between dependent and independent variables.

More broadly, we maintain that this work can be regarded as an extension of experimental practice as it restructures the empirical resources on which researchers build analyses of past experiments and can contribute to the design of future ones.

Understanding the ‘spaceflight treatment’ in plant space biology: Experimental practices, metadata workflows, and data re-analysis, Studies in History and Philosophy of Science via PubMed

Understanding the ‘spaceflight treatment’ in plant space biology: Experimental practices, metadata workflows, and data re-analysis, Studies in History and Philosophy of Science (open access)
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Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp veteran, (he/him) 🖖🏻