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Science Objectives for Flagship-Class Mission Concepts for the Search for Evidence of Life at Enceladus.
MacKenzie, Shannon M; Neveu, Marc; Davila, Alfonso F; Lunine, Jonathan I; Cable, Morgan L; Phillips-Lander, Charity M; Eigenbrode, Jennifer L; Waite, J Hunter; Craft, Kate L; Hofgartner, Jason D; McKay, Chris P; Glein, Christopher R; Burton, Dana; Kounaves, Samuel P; Mathies, Richard A; Vance, Steven D; Malaska, Michael J; Gold, Robert; German, Christopher R; Soderlund, Krista M; Willis, Peter; Freissinet, Caroline; McEwen, Alfred S; Brucato, John Robert; de Vera, Jean-Pierre P; Hoehler, Tori M; Heldmann, Jennifer.
Afiliación
  • MacKenzie SM; Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, USA.
  • Neveu M; Department of Astronomy, University of Maryland, College Park, Maryland, USA.
  • Davila AF; Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA.
  • Lunine JI; Division of Space Science and Astrobiology, NASA Ames Research Center, Moffett Field, California, USA.
  • Cable ML; Department of Astronomy, Cornell University, Ithaca, New York, USA.
  • Phillips-Lander CM; Carl Sagan Institute, Cornell University, Ithaca, New York, USA.
  • Eigenbrode JL; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA.
  • Waite JH; Space Science and Engineering Division, Southwest Research Institute, San Antonio, Texas, USA.
  • Craft KL; Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA.
  • Hofgartner JD; Space Science and Engineering Division, Southwest Research Institute, San Antonio, Texas, USA.
  • McKay CP; Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, USA.
  • Glein CR; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA.
  • Burton D; Division of Space Science and Astrobiology, NASA Ames Research Center, Moffett Field, California, USA.
  • Kounaves SP; Space Science and Engineering Division, Southwest Research Institute, San Antonio, Texas, USA.
  • Mathies RA; Department of Anthropology, George Washington University, Washington, District of Columbia, USA.
  • Vance SD; Department of Chemistry, Tufts University, Medford, Massachusetts, USA.
  • Malaska MJ; Chemistry Department and Space Sciences Laboratory, University of California, Berkeley, Berkeley, California, USA.
  • Gold R; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA.
  • German CR; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA.
  • Soderlund KM; Johns Hopkins University Applied Physics Laboratory, Laurel, Maryland, USA.
  • Willis P; Department of Geology & Geophysics, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA.
  • Freissinet C; Institute for Geophysics, Jackson School of Geosciences, The University of Texas at Austin, Austin, Texas, USA.
  • McEwen AS; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA.
  • Brucato JR; CNRS-University of Versailles St Quentin, LATMOS, Guyancourt, France.
  • de Vera JP; Lunar and Planetary Lab, University of Arizona, Tucson, Arizona, USA.
  • Hoehler TM; INAF-Astrophysical Observatory of Arcetri, Firenze, Italy.
  • Heldmann J; Space Operations and Astronaut Training, MUSC, German Aerospace Center (DLR), Cologne, Germany.
Astrobiology ; 22(6): 685-712, 2022 06.
Article en En | MEDLINE | ID: mdl-35290745
Cassini 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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Saturno Idioma: En Revista: Astrobiology Asunto de la revista: BIOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Saturno Idioma: En Revista: Astrobiology Asunto de la revista: BIOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos