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the claim
Jupiter's moon Europa has a subsurface ocean of liquid water.
the verdict
SUPPORTED
the evidence backs this
Recorded sources
11 sources for · 0 against
Is it true that Jupiter's moon Europa has a subsurface ocean of liquid water?
Yes. NASA and peer-reviewed sources state that Europa has a global liquid water ocean beneath its ice shell, inferred from Galileo magnetic-field measurements and tidal modeling. Several other items treat the ocean as a working assumption or a target for future detection rather than as an established fact.
Verdict: SUPPORTED · 11 sources for, 0 against · Last checked
Evidence for · 11
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Evidence for a subsurface ocean on Europa. (1998). dx.doi.org. https://doi.org/10.1038/34857
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More for · 10
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Why Europa: Evidence for an Ocean. (n.d.). science.nasa.gov. https://science.nasa.gov/mission/europa-clipper/why-europa-evidence-for-an-ocean/
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Radar Detectability of a Subsurface Ocean on Europa. (1998). doi.org. https://doi.org/10.1006/icar.1998.5961
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Seismic Detectability of a Subsurface Ocean on Europa. (2001). doi.org. https://doi.org/10.1006/icar.2000.6577
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Investigation of sub-surface ocean induction on Jupiter's icy moon Europa. (2022). urn.kb.se. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-492651
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Double ridge formation over shallow water sills on Jupiter’s moon Europa. (n.d.). cir.nii.ac.jp. https://doi.org/10.1038/s41467-022-29458-3
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The HADES mission concept – astrobiological survey of Jupiter's icy moon Europa. (2009). hal.science. https://doi.org/10.1017/S147355040999022X
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Modelling Magnetic Induction and Lorentz Force-Driven Flows in Europa’s Subsurface Ocean. (2026). resolver.sub.uni-goettingen.de. https://resolver.sub.uni-goettingen.de/purl?ediss-11858/16929
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Wolfenbarger, N. S., Blankenship, D. D., Young, D. A., Scanlan, K. M., Chivers, C. J., & Findlay, D. (2025). Radar Characterization of Salt Layers in Europa's Ice Shell as a Window Into Critical Ice‐Ocean Exchange Processes. doi.org. https://doi.org/10.1029/2024gl109144
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Grimm, R., Nguyen, T., Persyn, S., Phillips, M., Stillman, D., Taylor, T., Delory, G., Turin, P., Espley, J., Gruesbeck, J., & Sheppard, D. (2021). A magnetotelluric instrument for probing the interiors of Europa and other worlds. arxiv.org. https://doi.org/10.1016/j.asr.2021.04.011
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Subduction-like process in Europa’s ice shell triggered by enhanced eccentricity periods. (2025). hal.science. https://doi.org/10.1126/sciadv.adq8719
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