“Parada” na Lua pode facilitar a viagem de ida do homem à Marte
Autor: http://www.on.br | Publicado: 2015-11-13T07:12:00-08:00

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A
viagem de ida à Marte pode não precisar de uma nave com o tanque completamente
cheio. Estudos sugerem que uma parada na Lua diminuiria o peso da viagem em até
68%. Baseados em cálculos, astrônomos determinaram a rota até o planeta
vermelho e começaram a pensar em métodos para minimizar a massa a ser lançada
para fora da atmosfera terrestre.







Assumindo
que a tecnologia tenha avançado até o dia da missão à Marte, estudos anteriores
veem o solo lunar e a água congelada em algumas crateras como possíveis fontes
de combustível. Lançar a equipe com tanques preenchidos com apenas o necessário
para levá-la até a órbita da Terra seria o caminho mais eficiente, onde ela
pararia em uma estação da Lua apenas para encher o tanque antes de, por fim, ir
para Marte.







Oliver
Deck, professor de aeronáutica, astronáutica e engenharia de sistemas no
Instituto de Tecnologia de Massachusetts (MIT, na sigla em inglês), diz que o
plano vai contra a rota mais direta da NASA.







"Isso
vai contra a sabedoria popular de como ir à Marte, que é um tiro direto para
lá, carregando tudo com você." Disse Weck. "A ideia de fazer um
desvio para a Lua não é muito intuitivo. No entanto, o desvio poderia ser
econômico a longo prazo, porque não seria preciso enviar tudo da Terra."







Os
resultados foram baseados na tese de PhD do pesquisador Takuto Ishimatsu &nbsp;e que foram publicados no Journal of
Spacecraft and Rockets.