Literature DB >> 30045881

Radar evidence of subglacial liquid water on Mars.

R Orosei1, S E Lauro2, E Pettinelli2, A Cicchetti3, M Coradini4, B Cosciotti2, F Di Paolo5, E Flamini4, E Mattei3, M Pajola6, F Soldovieri7, M Cartacci3, F Cassenti8, A Frigeri3, S Giuppi3, R Martufi8, A Masdea9, G Mitri10, C Nenna11, R Noschese3, M Restano12, R Seu8.   

Abstract

The presence of liquid water at the base of the martian polar caps has long been suspected but not observed. We surveyed the Planum Australe region using the MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) instrument, a low-frequency radar on the Mars Express spacecraft. Radar profiles collected between May 2012 and December 2015 contain evidence of liquid water trapped below the ice of the South Polar Layered Deposits. Anomalously bright subsurface reflections are evident within a well-defined, 20-kilometer-wide zone centered at 193°E, 81°S, which is surrounded by much less reflective areas. Quantitative analysis of the radar signals shows that this bright feature has high relative dielectric permittivity (>15), matching that of water-bearing materials. We interpret this feature as a stable body of liquid water on Mars.
Copyright © 2018, American Association for the Advancement of Science.

Entities:  

Year:  2018        PMID： 30045881     DOI： 10.1126/science.aar7268

Source DB:  PubMed          Journal:  Science        ISSN： 0036-8075            Impact factor:   47.728


  32 in total

1.  Potential for Aerobic Methanotrophic Metabolism on Mars.

Authors:  Mayumi Seto; Katsuyuki Noguchi; Philippe Van Cappellen
Journal:  Astrobiology       Date:  2019-06-07       Impact factor: 4.335

2.  Inner Workings: Hunting for microbial life throughout the solar system.

Authors:  Adam Mann
Journal:  Proc Natl Acad Sci U S A       Date:  2018-11-06       Impact factor: 11.205

Review 3.  Methane on Mars and Habitability: Challenges and Responses.

Authors:  Yuk L Yung; Pin Chen; Kenneth Nealson; Sushil Atreya; Patrick Beckett; Jennifer G Blank; Bethany Ehlmann; John Eiler; Giuseppe Etiope; James G Ferry; Francois Forget; Peter Gao; Renyu Hu; Armin Kleinböhl; Ronald Klusman; Franck Lefèvre; Charles Miller; Michael Mischna; Michael Mumma; Sally Newman; Dorothy Oehler; Mitchio Okumura; Ronald Oremland; Victoria Orphan; Radu Popa; Michael Russell; Linhan Shen; Barbara Sherwood Lollar; Robert Staehle; Vlada Stamenković; Daniel Stolper; Alexis Templeton; Ann C Vandaele; Sébastien Viscardy; Christopher R Webster; Paul O Wennberg; Michael L Wong; John Worden
Journal:  Astrobiology       Date:  2018-09-19       Impact factor: 4.335

4.  The case for biotech on Mars.

Authors:  Shannon N Nangle; Mikhail Y Wolfson; Lucas Hartsough; Natalie J Ma; Christopher E Mason; Massimo Merighi; Vinitra Nathan; Pamela A Silver; Mark Simon; Jacob Swett; David B Thompson; Marika Ziesack
Journal:  Nat Biotechnol       Date:  2020-04       Impact factor: 54.908

5.  Bacterial Growth in Brines Formed by the Deliquescence of Salts Relevant to Cold Arid Worlds.

Authors:  Robin M Cesur; Irfan M Ansari; Fei Chen; Benton C Clark; Mark A Schneegurt
Journal:  Astrobiology       Date:  2021-11-05       Impact factor: 4.335

Review 6.  Active Mars: A Dynamic World.

Authors:  Colin M Dundas; Patricio Becerra; Shane Byrne; Matthew Chojnacki; Ingrid J Daubar; Serina Diniega; Candice J Hansen; Kenneth E Herkenhoff; Margaret E Landis; Alfred S McEwen; Ganna Portyankina; Adomas Valantinas
Journal:  J Geophys Res Planets       Date:  2021-07-29       Impact factor: 4.434

7.  Active lithoautotrophic and methane-oxidizing microbial community in an anoxic, sub-zero, and hypersaline High Arctic spring.

Authors:  Elisse Magnuson; Ianina Altshuler; Miguel Á Fernández-Martínez; Ya-Jou Chen; Catherine Maggiori; Jacqueline Goordial; Lyle G Whyte
Journal:  ISME J       Date:  2022-04-08       Impact factor: 11.217

Review 8.  Factoring Origin of Life Hypotheses into the Search for Life in the Solar System and Beyond.

Authors:  Alex Longo; Bruce Damer
Journal:  Life (Basel)       Date:  2020-04-27

9.  Physicochemical Salt Solution Parameters Limit the Survival of Planococcus halocryophilus in Martian Cryobrines.

Authors:  Annemiek C Waajen; Jacob Heinz; Alessandro Airo; Dirk Schulze-Makuch
Journal:  Front Microbiol       Date:  2020-07-07       Impact factor: 5.640

10.  Mars Extant Life: What's Next? Conference Report.

Authors:  B L Carrier; D W Beaty; M A Meyer; J G Blank; L Chou; S DasSarma; D J Des Marais; J L Eigenbrode; N Grefenstette; N L Lanza; A C Schuerger; P Schwendner; H D Smith; C R Stoker; J D Tarnas; K D Webster; C Bakermans; B K Baxter; M S Bell; S A Benner; H H Bolivar Torres; P J Boston; R Bruner; B C Clark; P DasSarma; A E Engelhart; Z E Gallegos; Z K Garvin; P J Gasda; J H Green; R L Harris; M E Hoffman; T Kieft; A H D Koeppel; P A Lee; X Li; K L Lynch; R Mackelprang; P R Mahaffy; L H Matthies; M A Nellessen; H E Newsom; D E Northup; B R W O'Connor; S M Perl; R C Quinn; L A Rowe; B Sauterey; M A Schneegurt; D Schulze-Makuch; L A Scuderi; M N Spilde; V Stamenković; J A Torres Celis; D Viola; B D Wade; C J Walker; R C Wiens; A J Williams; J M Williams; J Xu
Journal:  Astrobiology       Date:  2020-05-28       Impact factor: 4.335
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