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PELE: the Planetary Analogs & Exobiology Lava Tube Expedition

Kopacz, Nina and Baque, Mickael and Csuka, Joleen and Vilhelmsson, Oddur and Neubeck, Anna and Singh, Abhijeet and Iakubivskyi, Iaroslav and Callac, Nolwenn and Dapkevicius, Maria and Geppert, Wolf (2018) PELE: the Planetary Analogs & Exobiology Lava Tube Expedition. 3rd Astrobiology Graduates in Europe (AbGradE) symposium, 22-24 September 2018, Berlin, Germany.

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Lava tubes on Earth represent some of the most enticing Martian analog environments when investigating the possibility of past or present life on Mars. Lava tubes provide stable, sheltered environments which are isolated and protected from the radiation on the surface. The microbial mats in these caves further regulate the environment for life, allowing various microbial communities with different metabolisms to coexist. This adaptation is so successful, one could imagine it might occur on other planets, with other biologies, and perhaps with other fundamental chemistries [1]. The PELE team has investigated lava caves on Terceira Island, the Azores, and in Iceland. The project aims to correlate biological and mineralogical data to describe the interactions between the microbes and their geological substrates, to identify microbe-specific speleothems as biosignatures (Figure 1), to map the gradients of light, nutrients, and biodiversity, and to develop a sampling technique in these fragile environments. This is achieved with a combination of DNA sequencing, mass spectrometry, and XRF, XRD, and Raman spectroscopy. The work will serve as an indication of what kind of life, or remnants of life, we might expect to find in lave tubes on Mars.

Item URL in elib:https://elib.dlr.de/125699/
Document Type:Conference or Workshop Item (Poster)
Title:PELE: the Planetary Analogs & Exobiology Lava Tube Expedition
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Kopacz, NinaUtrecht UniversityUNSPECIFIEDUNSPECIFIED
Baque, MickaelUNSPECIFIEDhttps://orcid.org/0000-0002-6696-6030UNSPECIFIED
Csuka, JoleenColumbia UniversityUNSPECIFIEDUNSPECIFIED
Vilhelmsson, OddurUniversity of AkureyriUNSPECIFIEDUNSPECIFIED
Neubeck, AnnaUppsala UniversityUNSPECIFIEDUNSPECIFIED
Singh, AbhijeetUppsala UniversityUNSPECIFIEDUNSPECIFIED
Iakubivskyi, IaroslavTartu UniversityUNSPECIFIEDUNSPECIFIED
Dapkevicius, MariaUniversity of the AzoresUNSPECIFIEDUNSPECIFIED
Geppert, WolfStockholm Univ, Dept Phys, SE-10691 Stockholm, SwedenUNSPECIFIEDUNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:lava tubes, Mars, PELE, analogs
Event Title:3rd Astrobiology Graduates in Europe (AbGradE) symposium
Event Location:Berlin, Germany
Event Type:international Conference
Event Dates:22-24 September 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Vorhaben Planetary Evolution and Life (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Leitungsbereich PF
Deposited By: Baqué, Dr. Mickael
Deposited On:08 Jan 2019 09:03
Last Modified:08 Jan 2019 09:03

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