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dc.contributor.authorMacKenzie, Shannon M.  Concept link
dc.contributor.authorNeveu, Marc  Concept link
dc.contributor.authorDavila, Alfonso F.  Concept link
dc.contributor.authorLunine, Jonathan I.  Concept link
dc.contributor.authorCable, Morgan L.  Concept link
dc.contributor.authorPhillips-Lander, Charity M.  Concept link
dc.contributor.authorEigenbrode, Jennifer L.  Concept link
dc.contributor.authorWaite, J. Hunter  Concept link
dc.contributor.authorCraft, Kate  Concept link
dc.contributor.authorHofgartner, Jason D.  Concept link
dc.contributor.authorMcKay, Chris P.  Concept link
dc.contributor.authorGlein, Christopher R.  Concept link
dc.contributor.authorBurton, Dana  Concept link
dc.contributor.authorKounaves, Samuel P.  Concept link
dc.contributor.authorMathies, Richard A.  Concept link
dc.contributor.authorVance, Steven D.  Concept link
dc.contributor.authorMalaska, Michael J.  Concept link
dc.contributor.authorGold, Robert  Concept link
dc.contributor.authorGerman, Christopher R.  Concept link
dc.contributor.authorSoderlund, Krista M.  Concept link
dc.contributor.authorWillis, Peter  Concept link
dc.contributor.authorFreissinet, Caroline  Concept link
dc.contributor.authorMcEwen, Alfred S.  Concept link
dc.contributor.authorBrucato, John Robert  Concept link
dc.contributor.authorde Vera, Jean-Pierre P.  Concept link
dc.contributor.authorHoehler, Tori M.  Concept link
dc.contributor.authorHeldmann, Jennifer  Concept link
dc.date.accessioned2022-06-22T19:44:12Z
dc.date.available2022-06-22T19:44:12Z
dc.date.issued2022-06-08
dc.identifier.citationMacKenzie, S., Neveu, M., Davila, A., Lunine, J., Cable, M., Phillips-Lander, C., Eigenbrode, J., Waite, J., Craft, K., Hofgartner, J., McKay, C., Glein, C., Burton, D., Kounaves, S., Mathies, R., Vance, S., Malaska, M., Gold, R., German, C., Soderlund, K. M., Willis, P., Freissinet, C., McEwen, A. S., Brucato, J. R., de Vera, J-P. P., Hoehler, T. M., Heldmann, J. (2022). Science objectives for flagship-class mission concepts for the search for evidence of life at Enceladus. Astrobiology, 22(6), 685-712.en_US
dc.identifier.urihttps://hdl.handle.net/1912/29046
dc.description© The Author(s), 2022. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in MacKenzie, S., Neveu, M., Davila, A., Lunine, J., Cable, M., Phillips-Lander, C., Eigenbrode, J., Waite, J., Craft, K., Hofgartner, J., McKay, C., Glein, C., Burton, D., Kounaves, S., Mathies, R., Vance, S., Malaska, M., Gold, R., German, C., Soderlund, K. M., Willis, P., Freissinet, C., McEwen, A. S., Brucato, J. R., de Vera, J-P. P., Hoehler, T. M., Heldmann, J. Science objectives for flagship-class mission concepts for the search for evidence of life at Enceladus. Astrobiology, 22(6), (2022): 685-712. https://doi.org/10.1089/ast.2020.2425.en_US
dc.description.abstractCassini revealed that Saturn's Moon Enceladus hosts a subsurface ocean that meets the accepted criteria for habitability with bio-essential elements and compounds, liquid water, and energy sources available in the environment. Whether these conditions are sufficiently abundant and collocated to support life remains unknown and cannot be determined from Cassini data. However, thanks to the plume of oceanic material emanating from Enceladus’ south pole, a new mission to Enceladus could search for evidence of life without having to descend through kilometers of ice. In this article, we outline the science motivations for such a successor to Cassini, choosing the primary science goal to be determining whether Enceladus is inhabited and assuming a resource level equivalent to NASA's Flagship-class missions. We selected a set of potential biosignature measurements that are complementary and orthogonal to build a robust case for any life detection result. This result would be further informed by quantifications of the habitability of the environment through geochemical and geophysical investigations into the ocean and ice shell crust. This study demonstrates that Enceladus’ plume offers an unparalleled opportunity for in situ exploration of an Ocean World and that the planetary science and astrobiology community is well equipped to take full advantage of it in the coming decades.en_US
dc.description.sponsorshipThis work was supported by grant 80NSSC20K0136 of the NASA Planetary Mission Concept Studies Program. Some of the research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004). C.R.G. acknowledges support from the Exploring Ocean Worlds (ExOW) project (NASA Award: 80NSSC19K1427).en_US
dc.publisherMary Ann Liebert, Inc.en_US
dc.relation.urihttps://doi.org/10.1089/ast.2020.2425
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectEnceladusen_US
dc.subjectMissionen_US
dc.subjectLife detectionen_US
dc.subjectHabitabilityen_US
dc.titleScience objectives for flagship-class mission concepts for the search for evidence of life at Enceladusen_US
dc.typeArticleen_US
dc.identifier.doi10.1089/ast.2020.2425


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Attribution 4.0 International
Except where otherwise noted, this item's license is described as Attribution 4.0 International