Penetrators for in situ subsurface investigations of Europa
MetadataShow full item record
We present the scientific case for inclusion of penetrators into the Europan surface, and the candidate instruments which could significantly enhance the scientific return of the joint ESA/NASA Europa-Jupiter System Mission (EJSM). Moreover, a surface element would provide an exciting and inspirational mission highlight which would encourage public and political support for the mission. Whilst many of the EJSM science goals can be achieved from the proposed orbital platform, only surface elements can provide key exploration capabilities including direct chemical sampling and associated astrobiological material detection, and sensitive habitability determination. A targeted landing site of upwelled material could provide access to potential biological material originating from deep beneath the ice. Penetrators can also enable more capable geophysical investigations of Europa (and Ganymede) interior body structures, mineralogy, mechanical, magnetic, electrical and thermal properties. They would provide ground truth, not just for the orbital observations of Europa, but could also improve confidence of interpretation of observations of the other Jovian moons. Additionally, penetrators on both Europa and Ganymede, would allow valuable comparison of these worlds, and gather significant information relevant to future landed missions. The advocated low mass penetrators also offer a comparatively low cost method of achieving these important science goals. A payload of two penetrators is proposed to provide redundancy, and improve scientific return, including enhanced networked seismometer performance and diversity of sampled regions. We also describe the associated candidate instruments, penetrator system architecture, and technical challenges for such penetrators, and include their current status and future development plans. © 2010 COSPAR. Published by Elsevier Ltd. All rights reserved.
Showing items related by title, author, creator and subject.
Smith, A.; Crawford, I.; Gowen, R.; Ambrosi, R.; Anand, M.; Banerdt, B.; Bannister, N.; Bowles, N.; Braithwaite, C.; Brown, P.; Chela-Flores, J.; Cholinser, T.; Church, P.; Coates, A.; Colaprete, T.; Collins, G.; Collinson, G.; Cook, T.; Elphic, R.; Fraser, G.; Gao, Y.; Gibson, E.; Glotch, T.; Grande, M.; Griffiths, A.; Grygorczuk, J.; Gudipati, M.; Hagermann, A.; Heldmann, J.; Hood, L.; Jones, A.; Joy, K.; Khavroshkin, O.; Klingelhoefer, G.; Knapmeyer, M.; Kramer, G.; Lawrence, D.; Marczewski, W.; McKenna-Lawlor, S.; Miljkovic, Katarina; Narendranath, S.; Palomba, E.; Phipps, A.; Pike, W.; Pullan, D.; Rask, J.; Richard, D.; Seweryn, K.; Sheridan, S.; Sims, M.; Sweeting, M.; Swindle, T.; Talboys, D.; Taylor, L.; Teanby, N.; Tong, V.; Ulamec, S.; Wawrzaszek, R.; Wieczorek, M.; Wilson, L.; Wright, I. (2012)Emplacement of four or more kinetic penetrators geographically distributed over the lunar surface can enable a broad range of scientific exploration objectives of high priority and provide significant synergy with planned ...
Miljkovic, Katarina; Hillier, J.; Mason, N.; Zarnecki, J. (2012)We use numerical models, supported by our laboratory data, to predict the dust densities of ejecta outflux at any altitude within the Hill spheres of Europa and Ganymede. The ejecta are created by micrometeoroid bombardment ...
Planning considerations related to the organic contamination of martian samples and implications for the Mars 2020 roverSummons, Roger; Sessions, A.; Allwood, A.; Barton, H.; Beaty, D.; Blakkolb, B.; Canham, J.; Clark, B.; Dworkin, J.; Lin, Y.; Mathies, R.; Milkovich, S.; Steele, A. (2014)© Copyright 2014, Mary Ann Liebert, Inc. Data gathered during recent NASA missions to Mars, particularly by the Rovers Spirit, Opportunity, and Curiosity, have provided important insights into the past history and ...