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    Home » The Search for Water on Mars
    Sedona

    The Search for Water on Mars

    June 12, 2017No Comments
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    Presented by Dr. Nadine G. Barlow, Department of Physics and Astronomy, Northern Arizona University

    logo_campverdecommunitylibraryCamp Verde AZ (June 12, 2017) – Thursday, June 22 at 5:30p Dr. Nadine Barlow will talk about our search for water on Mars and why it matters. Dr. Barlow’s research interests include the evolution of the impact cratering record throughout the solar system, the geologic evolution of solid-surfaced planets, and determining the distribution of subsurface water reservoirs on Mars, Mercury, and the Moon. Her current research projects include determining the formation mechanism of central pits inside impact craters across the solar system, constraining the timing of the contraction of Mercury, investigating the role of water and ice in the evolution of the Arabia Terra region of Mars, and determining the evolutionary relationships between unusual craters found at high latitudes on Mars. She also has participated in NASA and international working groups on identifying Special Regions on Mars, which are areas where life could exist or where terrestrial microbes could survive. Her research is funded by NASA with additional student research support provided by the NASA Space Grant Program.

    Liquid water cannot currently exist on the Martian surface because of the low atmospheric pressure and low temperatures.  However, geologic, atmospheric, and mineralogic information suggests that water has flowed across the planet’s surface in the past.  Understanding when this water was present, how extensive it was, and what has happened to it is the focus of NASA’s Mars Exploration Program.  Identifying the current distribution of water reservoirs is of importance to understanding whether Martian life could ever have arisen and whether Martian lifeforms exist at the present time.  These reservoirs also will serve as necessary resources to future human exploration of the planet.  This presentation will discuss our current understanding of the distribution of water on Mars, both in time and location, as revealed by recent spacecraft and rover investigations.

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    Dr. Barlow is the author of Mars: An Introduction to its Interior, Surface, and Atmosphere, published by Cambridge University Press in 2008, and is currently working on a revision to that book. She also is working on a book about Martian impact craters for Cambridge University Press.

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    Analyzing City’s Legal Right to
    Ban OHVs on Public Roads

    By Tommy Acosta
    Mea Culpa! Mea Culpa! Mea Maxima Culpa! I screwed up. Blew it. Totally made a fool of myself. Missed the boat. I am talking about my editorial on the OHV fight, No Legal Traction on OHVs. I assumed that it was ADOT that would make a decision on whether the city could legally ban off road vehicles from our public roads like S.R. 89A and S.R. 179. Man was I off. ADOT has nothing to do with allowing or disallowing the city to do so. ADOT’s response to me when I asked them to clarify their position, was curt and to the point. “ADOT designs, builds and maintains the state highway system,” I was told. “It is not our place to offer an opinion on how state law might apply in this matter.” It was a totally “duh” moment for me when I realized that that the decision or judgement on the OHV ordinance, would involve the state and not ADOT. Chagrinned I stand. The crux of the matter then is whether the city can effectively use a number of standing state laws that can be interpreted to determine whether the city can legally ban the vehicles or not. Read more→
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