منابع مشابه
Gully Formation on Mars and Earth: the Transition from Glacial Activity to Gully Depositional Phases
Introduction: The discovery of gullies on Mars [1,2] resulted in a wide variety of proposed candidate mechanisms for formation but ensuing analyses have shown very strong latitude and orientation dependencies on their distributions [3-6]. These constraints have been interpreted to require: 1) a volatile on or near the surface as a source of liquid water, and 2) insolation and slope orientation ...
متن کاملFe-bearing Phases Identified by the Mössbauer Spectrometers on the Mars Exploration Rovers: an Overview
ROVERS: AN OVERVIEW. R. V. Morris, G. Klingelhöfer, D. W. Ming, C. Schröder, D. Rodionov, A. Yen, R. Gellert, and the Athena Science Team. ARES, NASA Johnson Space Center, Houston, TX 77058 ([email protected]). Institut für Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universität, Staudinger Weg 9, 55128 Mainz, Germany. Jet Propulsion Laboratory, California Institute o...
متن کاملThe design of Mars lander cameras for Mars Pathfinder, Mars Surveyor '98 and Mars Surveyor '01
The Mars Pathfinder, Mars Surveyor ’98, and Mars Surveyor ’01 lander designs all utilize charged coupled device (CCD)-based cameras to conduct scientific investigations, assist with navigation of surface rovers and/or confirm sample acquisition and delivery by robotic arms (RAs). The extreme temperature and pressure environment of the Martian surface, the vibration and shock experienced during ...
متن کاملFunction of Neutrophils in Different Phases of Chronic Myelogenous Leukemia
In chronic myelogenous leukemia (CML), the mature granulocytes originate from a stem cell line harboring an abnormal chromosome, therefore it is possible that metabolic-functional abnormalities occur in the morphologically mature cells. In the present study, the phagocytic activity including intracellular killing, nitro blue tetrazolium (NBT) reduction, and phagocytosis were studied in 37 CML p...
متن کاملObservations of the nightside ionosphere of Mars by the Mars Express Radio Science Experiment (MaRS)
[1] The vertical structure of the nightside ionosphere of Mars and its dependence on solar zenith angle are currently poorly determined, as is the importance of two key sources of nightside plasma, electron precipitation and transport of dayside plasma. We examined 37 electron density profiles of the ionosphere of Mars at solar zenith angles of 101 –123 obtained by the Mars Express Radio Scienc...
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ژورنال
عنوان ژورنال: Astronomy & Geophysics
سال: 1997
ISSN: 1468-4004,1366-8781
DOI: 10.1093/astrogeo/38.3.8-a