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The exploration of habitable worlds with future space missions

Coustenis, A. and Encrenaz, T. and Grasset, O. and Solomonidou, A. and Sohl, F. and Hussmann, H. and Wagner, F.W. and Raulin, F and Schulze-Makuch, D. (2013) The exploration of habitable worlds with future space missions. 10th Annual Meeting Asia Oceania Geosciences Society (AOGS), 2013-06-24 - 2013-06-28, Brisbane, Australia.

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The study of the habitable conditions in the outer solar system tends to enlarge the limits of the traditional habitable zone. Several of the icy moons show such promising conditions for the development and/or maintenance of life [1]. Jupiter’s Europa, Callisto and Ganymede as well as Saturn’s Titan and Enceladus, seem to satisfy many of the “classical” criteria for habitability such as the presence of liquid water, the energy sources to sustain metabolism and the “nutrients” over a period of time long enough to allow the development of life. Cassini-Huygens demonstrated that Titan and Enceladus possess active organic chemistries subject to seasonal variations and unique geological features [2;3]. Additionally, all these satellites show indications of harboring liquid water oceans under their icy crusts, which may even be (in the case of Europa) in direct contact with a silicate mantle floor and kept warm through time by tidally generated heat [1]. Such evidence suggests that habitability conditions can be found not only on the surfaces of Earth-like planets, but in far-away objects in their interiors. Furthermore, the strong gravitational pull caused by the giant planets may produce enough energy to sufficiently heat the cores of orbiting icy moons. Similarly, waterworlds can exist in exoplanets which are currently investigated thoroughly from large ground-based telescopes and earth observatories [1]. In the solar system, such potential habitats can be investigated with designated space missions, like ESA’s JUpiter ICy moon Explorer to Jupiter’s system (launch in 2022) [4]. Titan could be explored in the future via mission concepts like TSSM or TiMe which have been studied by the space agencies. References: [1] Coustenis, A., Encrenaz, Th., Cambridge Univ. Press, 2013. [2] Sohl, F., et al., in prep. [3] Solomonidou, A., et al.: PSS, DOI: 10.1016/j.pss.2012.05.003, 2013. [4] Grasset, O., et al.: PSS, in press, 2013.

Item URL in elib:https://elib.dlr.de/83230/
Document Type:Conference or Workshop Item (Speech)
Title:The exploration of habitable worlds with future space missions
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Coustenis, A.Laboratoire d’Etudes Spatiales et d’Instrumentation en Astrophysique (LESIA), Observatoire de Paris-Meudon, 92195 Meudon Cedex, FranceUNSPECIFIED
Encrenaz, T.Laboratoire d’Etudes Spatiales et d’Instrumentation en Astrophysique (LESIA), Observatoire de Paris-Meudon, 92195 Meudon Cedex, FranceUNSPECIFIED
Grasset, O.Laboratoire de Planétologie et de Géodynamique, Faculté des Sciences, Nantes, FranceUNSPECIFIED
Solomonidou, A.National and Kapodistrian University of Athens, Department of Geology and Geoenvironment, Athens, GreeceUNSPECIFIED
Sohl, F.frank.sohl (at) dlr.deUNSPECIFIED
Hussmann, H.hauke.hussmann (at) dlr.deUNSPECIFIED
Wagner, F.W.frank.wagner (at) dlr.deUNSPECIFIED
Raulin, FLaboratoire Interuniversitaire des Systèmes Atmopshérique (LISA), Universités Paris 12 et Paris 7UNSPECIFIED
Schulze-Makuch, D.School of Earth and Environmental Sciences, Washington State University, Pullman, USAUNSPECIFIED
Date:June 2013
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Europa, Callisto, Ganymede, Titan, Enceladus, interior structure, solid body tides, tidal dissipation, cryovolcanism, habitability, JUpiter ICy moon Explorer (JUICE), future missions.
Event Title:10th Annual Meeting Asia Oceania Geosciences Society (AOGS)
Event Location:Brisbane, Australia
Event Type:international Conference
Event Dates:2013-06-24 - 2013-06-28
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Vorhaben Exploration des Sonnensystems
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Deposited By: Sohl, Frank
Deposited On:19 Sep 2013 12:08
Last Modified:08 May 2014 23:24

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