منابع مشابه
Space science. Canada eyes front-row seat in Mars program.
As a first step in that campaign, some 120 researchers met late last month in Montreal to kick around ideas ranging from drilling beneath the martian surface to returning samples from one of its moons. “We look at this as the next major space program for Canada,” says Marc Garneau, recently named executive vice president of the Canadian Space Agency. “We want to be involved with Mars in more th...
متن کاملChanges of macular pigment optical density in elderly eyes: a longitudinal analysis from the MARS study
BACKGROUND Macular pigment (MP) has been related to the occurrence of age related macular degeneration (AMD). We investigated prospectively in eyes of elderly individuals how magnitude and spatial distribution of MP had changed after 4 years. METHODS The study included 380 eyes from 237 participants of the Münster Ageing and Retina Study cohort which were free of advanced stages of AMD. MP op...
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 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...
متن کاملThe Mars Society of Caltech Human Exploration of Mars Endeavor
The Mars Society of Caltech Human Exploration of Mars Endeavor (Mars SCHEME) is a detailed description of robotic and human missions necessary to establish a permanent human presence on the surface of Mars. The sequence begins in 2009 with a robotic Mars sample return mission on a larger scale than that currently planned. This is followed in 2011 by a pair of HEDS landers designed to test in-si...
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ژورنال
عنوان ژورنال: Mechanical Engineering
سال: 2004
ISSN: 0025-6501,1943-5649
DOI: 10.1115/1.2004-sep-3