NASA Design reference missions (2000+) (1 gen 2000 anni – 1 dic 2009 anni)
Descrizione:
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
Aggiunto al nastro di tempo:
Data:
1 gen 2000 anni
1 dic 2009 anni
~ 9 years and 11 months