منابع مشابه
The Atacama Desert Trek: Outcomes
In June and July 1997, Nomad, a planetary-relevant mobile robot, traversed more than 220 kilometers across the barren Atacama Desert in Chile, exploring a landscape analogous to the surfaces of the Moon and Mars. In this unprecedented demonstration, Nomad operated both autonomously and under the control of operators thousands of kilometers away, addressing issues of robot configuration, communi...
متن کاملOperating Nomad during the Atacama Desert Trek
Nomad is a mobile robot designed for extended planetary exploration. In June and July of 1997, Nomad performed the first such mission, traversing more than 220 kilometers in the Atacama Desert of Chile and exploring a landscape analogous to that of the Moon and Mars. Nomad's journey, the Atacama Desert Trek, was an unprecedented demonstration of long-distance, long-duration robotic operation. G...
متن کاملColonization patterns of soil microbial communities in the Atacama Desert
BACKGROUND The Atacama Desert is one of the driest deserts in the world and its soil, with extremely low moisture, organic carbon content, and oxidizing conditions, is considered to be at the dry limit for life. RESULTS Analyses of high throughput DNA sequence data revealed that bacterial communities from six geographic locations in the hyper-arid core and along a North-South moisture gradien...
متن کاملTransitory microbial habitat in the hyperarid Atacama Desert
Traces of life are nearly ubiquitous on Earth. However, a central unresolved question is whether these traces always indicate an active microbial community or whether, in extreme environments, such as hyperarid deserts, they instead reflect just dormant or dead cells. Although microbial biomass and diversity decrease with increasing aridity in the Atacama Desert, we provide multiple lines of ev...
متن کاملSubcritical water extraction of amino acids from Atacama Desert soils
[1] Amino acids are considered organic molecular indicators in the search for extant and extinct life in the Solar System. Extraction of these molecules from a particulate solid matrix, such as Martian regolith, will be critical to their in situ detection and analysis. The goals of this study were to optimize a laboratory amino acid extraction protocol by quantitatively measuring the yields of ...
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ژورنال
عنوان ژورنال: Annals of The Tohoku Geographycal Asocciation
سال: 1970
ISSN: 0387-2777,1884-1244
DOI: 10.5190/tga1948.22.104