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Please wait http://rockettube.fun/sitemaps/12.html "powered by article dashboard" visa vietnam apply  NASA is working on engines intended to cut the travel time to Mars by the 2030s, but those systems won't be ready for many years, Chris Moore, NASA's deputy director of advanced exploration systems, told CNN this year. In the meantime, Moore said engineers could try to limit travelers' exposures by designing a spacecraft in such a way that it provides more protection.
Emilio 2020-01-23 07:29:42

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