Responses of Phage T7, Phage DNA and Polycrystalline Uracil to the Space Environment (EXPOSE-R PUR) - 11.22.16

Overview | Description | Applications | Operations | Results | Publications | Imagery

ISS Science for Everyone

Science Objectives for Everyone
The Phage and Uracil Response (EXPOSE-R PUR) experiment studies the effect of solar UV radiation on a type of virus and a RNA compound, to determine their effectiveness as biological dosimeters for measuring ultraviolet (UV) radiation doses in the space environment. The EXPOSE programme is part of ESA’s research in astrobiology, i.e. the study of the origin, evolution, and distribution of life in the universe. EXPOSE offers one to two years of exposure with full access to all components of the harsh space environment: cosmic radiation, vacuum, full-spectrum solar light including UV-C, freezing/thawing cycles, microgravity.
Science Results for Everyone
Information Pending

The following content was provided by Hervé Cottin, and is maintained in a database by the ISS Program Science Office.
Information provided courtesy of the Erasmus Experiment Archive.
Experiment Details

OpNom:

Principal Investigator(s)
G. Ronto, Hungary

Co-Investigator(s)/Collaborator(s)
A. Bérces, Hungary
Andrea Fekete, Semmelweis University, Budapest, Hungary
P. Gróf, Hungary

Developer(s)
European Space Agency (ESA), Noordwijk, Netherlands

Sponsoring Space Agency
European Space Agency (ESA)

Sponsoring Organization
Information Pending

Research Benefits
Information Pending

ISS Expedition Duration
October 2008 - March 2011

Expeditions Assigned
18,19/20,21/22,23/24,25/26

Previous Missions
Information Pending

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Experiment Description

Research Overview
Some EXPOSE experiments investigate to what extent particular terrestrial organisms are able to cope with extra-terrestrial environmental conditions. Other EXPOSE experiments test how organic molecules, the building blocks of life, behave when subjected for a prolonged period of time to unfiltered solar light (a scientific domain called chemical evolution).

Description
Information Pending

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Applications

Space Applications
EXPOSE-R contains a variety of biological samples including plant seeds, bacteria, fungi and ferns, which are exposed to the harsh space environment for 22 months, to gain a better understanding of how living things react to the conditions.

Earth Applications
Information Pending

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Operations

Operational Requirements and Protocols

Organic compounds (Uracil Bacteriophage T7) are exposed to the space environment to study the biologically effective dose of solar extraterrestrial UV radiation by biological dosimetry. Reference samples were kept in darkness.
 
At the end of the 22 months exposure period the EXPOSE-R trays are retrieved from their location outside the station and returned to Earth and distributed to scientists for further analysis.
 
Nine experiments contained in three trays make up EXPOSE-R, which is mounted on the outside of the Russian segment of the International Space Station.
 
 
 
 

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Decadal Survey Recommendations

Information Pending

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Results/More Information

Information Pending

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Results Publications

    Berces A, Egyeki M, Fekete A, Horneck G, Kovacs G, Panitz C, Ronto G.  The PUR Experiment on the EXPOSE-R facility: biological dosimetry of solar extraterrestrial UV radiation. International Journal of Astrobiology. 2015 January; 14(1): 47-53. DOI: 10.1017/S1473550414000287.

    Berces A, Egyeki M, Fekete A, Kovacs G, Ronto G.  Biological ultraviolet dosimetry in low Earth’s orbit. Journal of Astrobiology and Outreach. 2013 July 8; 1(1): 104. DOI: 10.4172/2332-2519.1000104.

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Ground Based Results Publications

    Rabbow E, Horneck G, Rettberg P, Schott J, Panitz C, L'Afflitto A, von Heise-Rotenburg R, Willnecker R, Baglioni P, Hatton JP, Dettmann J, Demets R, Reitz G.  EXPOSE, an Astrobiological Exposure Facility on the International Space Station - from Proposal to Flight. Origins of life and evolution of the biosphere: The Journal of the International Society for the Study of the Origin of Life. 2009; 39(6): 581-598. DOI: 10.1007/s11084-009-9173-6.

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ISS Patents

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Related Publications

    Brack A, Horneck G, Cockell CS, Berces A, Belisheva NK, Eiroa C, Henning T, Herbst T, Kaltenegger L, Leger A, Liseau R, Lammer H, Selsis F, Beichman C, Danchi W, Fridlund M, Lunine J, Paresce F, Penny A, Quirrenbach A, Rottgering H, Schneider J, Stam D, Tinetti G, White G.  Origin and evolution of life on terrestrial planets. Astrobiology. 2010 January; 10(1): 69-76. DOI: 10.1089/ast.2009.0374.

    Rabbow E, Rettberg P, Barczyk S, Bohmeier M, Parpart A, Panitz C, Horneck G, Burfeindt J, Molter F, Jaramillo E, Pereira C, Weib P, Willnecker R, Demets R, Dettmann J, Reitz G.  The astrobiological mission EXPOSE-R on board of the International Space Station. International Journal of Astrobiology. 2015 January; 14(1): 3-16. DOI: 10.1017/S1473550414000202.

    Goldschmidt G, Kovaliczky E, Szabo J, Ronto G, Berces A.  In situ biodosimetric experiment for space applications. Origins of life and evolution of the biosphere: The Journal of the International Society for the Study of the Origin of Life. 2012 June; 42(2-3): 247-252. DOI: 10.1007/s11084-012-9286-1. PMID: 22688853. [Also Paper presented at the 11th European Workshop on Astrobiology - EANA 11, 11th-14th July 2011, Köln, Germany.]

    Fendrihan S, Berces A, Lammer H, Musso M, Ronto G, Polacsek TK, Holzinger A, Kolb C, Stan-Lotter H.  Investigating the effects of simulated martian ultraviolet radiation on Halococcus dombrowskii and other extremely halophilic archaebacteria. Astrobiology. 2009 January; 9(1): 104-112. DOI: 10.1089/ast.2007.0234.

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Related Websites
EXPOSE-R PUR Investigation from ESA's Erasmus Experiment Archive

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Imagery

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NASA Image: ISS018E013542 - Yury Lonchakov in the Pirs Docking Compartment (DC1) as he works with an EXPOSE-R sample tray.

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NASA Image: ISS018E039227 - One of two Expedition 18 spacewalkers provided this close-up image of the Expose-R experiment, reinstalled a short while earlier on the outside of the Russian segment of the International Space Station. The European experiment is equipped with three trays which contain a variety of biological samples.

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NASA Image: ISS021E027095 - The Expose-R experiment located on the exterior of the Service Module (SM)/Zvezda.

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NASA Image: ISS025E015290 - Russian cosmonaut Oleg Skripochka, Expedition 25 flight engineer, wearing a Russian Orlan spacesuit, is photographed working near the ESA experiment EXPOSE-R instrument installed on the Zvezda Service module. Photo taken during the Russian EVA 26.

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NASA Image: ISS026E021253 - EXPOSE R - Russian Experiment, in the Service Module (SM). Photo was taken during Expedition 26.

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