NASA Design reference missions (2000+) (1 jan 2000 ano – 1 dez 2009 ano)

Descrição:

The NASA Mars Design Reference Missions consisted of a series of conceptual design studies for human Mars missions, continued in the 21st century Selected other US/NASA plans (1988–2009)
2000 SERT (SSP)
2001 DPT/NEXT
2002 NEP Art. Gravity
2009 DRA 5

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