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  Les astronomes et leurs...  
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L'Univers est évidemment beaucoup plus complexe que le système solaire, et avant l'invention du télescope, les astronomes ne pouvaient pas déterminer l'étendue de l'Univers. C'est en augmentant la grosseur et en améliorant l'optique des télescopes que nous avons pu en découvrir davantage sur notre Univers.
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The universe is far more complex than the solar system, of course, and before the invention of the telescope the full extent of the universe was virtually unknown to astronomers. With increased size and improved optics, telescopes began to reveal more of our universe. Catalogues of deep sky objects were created, but the nature of the objects was unknown until the 20th century. Galaxies were finally understood as distant collections of billions of separate stars, and our place in the Milky Way was discovered. Telescopes are now incredibly technical, with mirrors 10 metres across, adaptive optics systems which correct for turbulence, and an orbiting telescope worth billions of dollars.
  ASC - MOPITT : un instr...  
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Les feux de forêt et les procédés industriels non optimisés en sont une source importante. Depuis les années 1970, les niveaux de ce gaz augmentent de façon constante, mais on n'a jamais pu en vérifier les causes et les effets à l'échelle planétaire.
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Carbon monoxide is toxic. It is produced by incomplete combustion such as forest fires and inefficient manufacturing processes. Scientists have known since the 1970s that levels have been steadily rising, but global causes and effects could not be verified. Now, a Canadian space instrument named MOPITT (for “measurement of pollution in the troposphere”) is producing high-resolution 3-D maps that measure carbon monoxide levels around the globe. These maps, updated every four days, help distinguish between natural and manmade sources of pollution while providing the data needed to evaluate the need to strengthen anti-pollution measures.
  Hypersole - Agence spat...  
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Il s'intéressait surtout à la régulation de la tension artérielle. Nous avons pu en profiter pour effectuer des tests de sensibilité sur ces personnes, et ces tests nous ont aidés à établir des plages de test structurées pour le projet Hypersole.
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There are similarities between spaceflight and bed rest. One of them is obvious: in both there is no weight on the feet. A research colleague has conducted several bed rest studies, with a primary interest in blood pressure regulation. We were able to perform some sensitivity testing on these individuals at the same time, and these tests helped us to establish structured testing ranges for the Hypersole project. In turn, information gained from Hypersole will be appended to existing bed-rest protocols.