Browsing Faculty of Arts and Sciences by Keyword "astrobiology"

Now showing items 1-6 of 6

    • An Astrobiological Perspective on Meridiani Planum 

      Wdowiak, Thomas; Tosca, Nicholas J.; Squyres, Steven; Schroder, Christian; Malin, Michael; McLennan, Scott M.; Grotzinger, John P.; Fischer, Woodward W.; Farmer, Jack D.; Des Marais, David J.; Clark, Benton; Carr, Michael; Knoll, Andrew Herbert (Elsevier, 2005)
      Sedimentary rocks exposed in the Meridiani Planum region of Mars record aqueous and eolian deposition in ancient dune and interdune playa-like environments that were arid, acidic, and oxidizing. On Earth, microbial populations ...

    • Atmospheric Heat Redistribution and Collapse on Tidally Locked Rocky Planets 

      Wordsworth, Robin (IOP Publishing, 2015)
      Atmospheric collapse is likely to be of fundamental importance to tidally locked rocky exoplanets, but it remains understudied. Here, general results on the heat transport and stability of tidally locked terrestrial-type ...

    • Complex Organic Molecules During Low-Mass Star Formation: Pilot Survey Results 

      Oberg, Karin; Lauck, Trish; Graninger, Dawn M (IOP Publishing, 2014)
      Complex organic molecules (COMs) are known to be abundant toward some low-mass young stellar objects (YSOs), but how these detections relate to typical COM abundance are not yet understood. We aim to constrain the frequency ...

    • Fossilization Potential of Iron-Bearing Minerals in Acidic Environments of Rio Tinto, Spain: Implications for Mars Exploration 

      Fernandez-Remolar, David C.; Knoll, Andrew (Elsevier, 2008)
      Acidic waters of the Rio Tinto, southwestern Spain, evaporate seasonally, precipitating a variety of iron sulfide and oxide minerals. Schwertmannite and nanophase goethite form thin laminae on biological and detrital grain ...

    • Statistical Signatures of Panspermia in Exoplanet Surveys 

      Lin, Henry Wanjune; Loeb, Abraham (IOP Publishing, 2015)
      A fundamental astrobiological question is whether life can be transported between extrasolar systems. We propose a new strategy to answer this question based on the principle that life which arose via spreading will exhibit ...

    • Water on Mars and the Prospect of Martian Life 

      Knoll, Andrew; Grotzinger, John (Mineralogical Society of America, 2006)
      Evidence of water on Mars dates back to the first observations of channeled landscapes made by Mariner 9 and Viking. More recent images from Mars Global Surveyor and Mars Express strikingly confirm that fluids have E ...