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the claim

A garden of plants aboard the International Space Station could supply all the crew's oxygen indefinitely.

the verdict
CONTESTED PARTIAL
Recorded sources
1 source for · 3 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that a garden of plants aboard the International Space Station could supply all the crew's oxygen indefinitely?

Partly. One systematic review says plant-based modules in confined settings regenerate oxygen and clean air, while NASA and related sources describe the ISS Veggie garden as a small six-plant supplemental unit making only limited contributions to spacecraft functionality. No placed source establishes that a garden could supply all the crew's oxygen indefinitely.

Verdict: CONTESTED PARTIAL · 1 source for, 3 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 1
Health effects of plants, light, and natural elements of biophilic interventions in confined settings: a systematic review.
2025
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A, Z. & SF, W. (2025). Health effects of plants, light, and natural elements of biophilic interventions in confined settings: a systematic review.. doi.org. https://doi.org/10.3389/fphys.2025.1700518

Evidence against · 3
Plants in space - Wikipedia
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Plants in space - Wikipedia. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Plants_in_space

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More against · 2
Growing Plants in Space - NASA
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Growing Plants in Space - NASA. (n.d.). nasa.gov. https://www.nasa.gov/exploration-research-and-technology/growing-plants-in-space/

Optimizing Controlled-Release Fertilizer for Lettuce and Mizuna Grown on the International Space Station
2019
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Optimizing Controlled-Release Fertilizer for Lettuce and Mizuna Grown on the International Space Station. (2019). doi.org. https://doi.org/10.25394/pgs.11311487

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