OREOcube

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OREOcube (ORganics Exposure in Orbit cube) is an experiment designed by the European Space Agency (ESA) with the NASA that will investigate the effects of solar and cosmic radiation on selected organic compounds. It will consist in a 12-month orbital study of the effects of the outer space environment on astrobiologically relevant materials in an external exposure facility on the International Space Station (ISS).

Contents

The project, which will be launched sometime in 2016, [1] will examine the evolution of complex organic molecules in outer space, as well as the forms in which prebiotic organic compounds has been preserved. It will also study the role that solid mineral surfaces play in the photo-chemical evolution, transport, and distribution of organics. The principal investigator is Pascale Ehrenfreund.

Objective

The objective of OREOcube is to investigate the influence of mineralogically relevant inorganic materials on the stability, modification, and degradation of the organic molecules during long-duration radiation exposure on the ISS. [2] [3] [4]

Organic compounds, thought to be the starting material for prebiotic chemistry, could have partly had an extraterrestrial origin. This addition could have been done by bombardment by comets and meteorites, which contain organic molecules. [5] [6] [7] [8] (see also: pseudo-panspermia)

Spacecraft description

OREOcube is packaged as an identical pair of 10 cm (3.9 in) cubes, each weighing <2 kg and containing an UV-visible-NIR spectrometer, a 24-sample carousel, and integral optics enabling use of the Sun as a light source for spectroscopy, along with the electronics and data storage to make each cube an autonomous stand-alone instrument package requiring only a standard power and data interface. [2] Unlike other similar experiments, OREOcube will monitor changes in the UV/vis/NIR spectrum of the samples in situ at different times during their exposure to outer space. [3] OREOScube will provide data sets that capture critical kinetic and mechanistic details of sample reactions that cannot be obtained with current exposure facilities in low Earth orbit. [9]

Samples to be exposed include amino acids, sugars, small N-heterocycles, nucleobases, polycyclic aromatic hydrocarbons (PAH), [3] redox molecules, and organosulfur compounds. [9] The project examine photodissociation reaction rates, mechanisms, products and degradation of the organic molecules in the astrobiological context. [3]

The project is being developed by the ESA with collaboration with NASA's Exploration Systems Mission Directorate (ESMD) for a launch in 2016. [1]

See also

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References

  1. 1 2 NASA Launch Summary OREOcube — launch: TBA; launcher: TBA PD-icon.svgThis article incorporates text from this source, which is in the public domain .
  2. 1 2 ORganics Exposure in Orbit (OREOcube) experiment on the International Space Station: Preliminary studies Jason Alonzo Department of Physics and Astronomy, California State Polytechnic University
  3. 1 2 3 4 "OREOcube" ORganics Exposure in Orbit [ dead link ] Julie Fletcher Astrobiology at NASA 2 May 2014 PD-icon.svgThis article incorporates text from this source, which is in the public domain .
  4. ↑ Elsaesser, A.; Quinn, R. C.; Ehrenfreund, P.; Mattioda, A. L.; Ricco, A. J.; Alonzo, J.; Breitenbach, A.; Chan, Y. K.; Fresneau, A.; Salama, F.; Santos, O. (2014). "Organics Exposure in Orbit (OREOcube): A next-generation space exposure platform". Langmuir. 30 (44): 13217–13227. Bibcode:2014cosp...40E.798E. doi: 10.1021/la501203g . PMID   24851720.
  5. ↑ Cottin, H.; Saiagh, K.; Nguyen, D.; Berger, T. (2014). "Photochemical studies in low Earth orbit for organic compounds related to small bodies, Titan and Mars. Current and future facilities". Bulletin de la Société Royale des Sciences de Liège. 84: 60–73. Bibcode:2015BSRSL..84...60C.
  6. ↑ Chow, Denise (26 October 2011). "Discovery: Cosmic Dust Contains Organic Matter from Stars". Space.com.
  7. ↑ "Astronomers Discover Complex Organic Matter Exists Throughout the Universe". ScienceDaily. 26 October 2011.
  8. ↑ Kwok, Sun; Zhang, Yong (26 October 2011). "Mixed aromatic–aliphatic organic nanoparticles as carriers of unidentified infrared emission features". Nature. 479 (7371): 80–83. Bibcode:2011Natur.479...80K. doi:10.1038/nature10542. PMID   22031328. S2CID   4419859.
  9. 1 2 Project 1F: Organics Exposure in Orbit (OREOcube): A Next-Generation Space Exposure Platform [ dead link ] NASA Astrobiology Institute 2013 Annual Science Report University of Wisconsin PD-icon.svgThis article incorporates text from this source, which is in the public domain .
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