Article issu du bulletin APM n°63 d’Avril 2015, rejoignez APM pour recevoir les bulletins dès leur parution. BIRDY désigne un projet de CubeSat interplanétaire destiné à rapporter un jeu de données complet sur les radiations du vent solaire et des rayons cosmiques pendant un trajet Terre-Mars et retour. Vous savez, ces fameuses radiations qui empêchent tout vol habité vers Mars, soi-disant. En fait, à cause de la rareté des données disponibles, des approximations prudentes sont faites à chaque étape du raisonnement par rapport au risque réel, montrant finalement un risque de cancer pour l’homme exagérément élevé. Notre idée a donc été de profiter des nouvelles solutions que sont les CubeSats pour rapporter à moindre coût des données directement prélevées dans l’espace interplanétaire entre la Terre et Mars. L’idée est née en 2012, lorsque l’instrument RAD sur le rover martien Curiosity a été allumé pendant son voyage vers Mars. RAD est implanté sur le pont supérieur du rover [...]
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