NASA Design reference missions (2000+) (1 янв 2000 г. – 1 дек 2009 г.)
Описание:
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
Добавлено на ленту времени:
Дата:
1 янв 2000 г.
1 дек 2009 г.
~ 9 years and 11 months