Zero gravity exists aboard the International Space Station.

the verdict

INSUFFICIENT LEANING

Recorded sources

7 sources for · 0 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 zero gravity exists aboard the International Space Station?

Unclear. Several peer-reviewed papers describe the ISS as a microgravity or zero-gravity environment in the context of specific experiments, and a forum answer states gravity in the ISS is nearly zero at every point. None of the placed sources directly and fully settles the general claim that zero gravity exists aboard the ISS.

Verdict: PARTIAL LEAN · 7 sources for, 0 against · Last checked 3 Oct 2026

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

Evidence for · 7

Phototropism of Arabidopsis thaliana in microgravity and fractional gravity on the International Space Station.

2012

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Kiss, J. Z., Millar, K. D. L., & Edelmann, R. E. (2012). Phototropism of Arabidopsis thaliana in microgravity and fractional gravity on the International Space Station.. doi.org. https://doi.org/10.1007/s00425-012-1633-y

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More for · 6

Numerical study of the air distribution in the Crew Quarters on board of the International Space Station

2019

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Charles, B., Matei-Răzvan, G., & Ilinca, N. (2019). Numerical study of the air distribution in the Crew Quarters on board of the International Space Station. doi.org. https://doi.org/10.1051/e3sconf/20198502015

Launch of Robotic Fish to the Space: Development of Autonomous Cleaning Robot in the International Space Station

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Launch of Robotic Fish to the Space: Development of Autonomous Cleaning Robot in the International Space Station. (n.d.). cir.nii.ac.jp. https://cir.nii.ac.jp/crid/1571417127795541888

Launch of Robotic Fish to the Space: Development of Autonomous Cleaning Robot in the International Space Station

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Launch of Robotic Fish to the Space: Development of Autonomous Cleaning Robot in the International Space Station. (n.d.). cir.nii.ac.jp. https://doi.org/10.3182/20130918-4-jp-3022.00037

Autonomous Planning In-space Assembly Reinforcement-learning free-flYer (APIARY) International Space Station Astrobee Testing

2025

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Autonomous Planning In-space Assembly Reinforcement-learning free-flYer (APIARY) International Space Station Astrobee Testing. (2025). doi.org. https://doi.org/10.1109/isparo66239.2025.11436341

Bone turnover in wild type and pleiotrophin-transgenic mice housed for three months in the International Space Station (ISS).

2012

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Tavella, S., Ruggiu, A., Giuliani, A., Brun, F., Canciani, B., & Manescu, A. (2012). Bone turnover in wild type and pleiotrophin-transgenic mice housed for three months in the International Space Station (ISS).. doi.org. https://doi.org/10.1371/journal.pone.0033179

Is the zero gravity experienced in ISS the "artificial" kind?

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Is the zero gravity experienced in ISS the "artificial" kind?. (n.d.). space.stackexchange.com. https://space.stackexchange.com/questions/54198/is-the-zero-gravity-experienced-in-iss-the-artificial-kind

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