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- be the first U.S. mission launched to Mars since the Viking
- missions in 1975. It will be launched from NASA~s Kennedy
- Space Center between September 16 and October 13 aboard a
- Titan III rocket and a Transfer Orbit Stage (TOS). Mars
- Observer will travel 720 million kilometers (450 million
- miles) in 11 months to its late-summer 1993 insertion into
- Martian orbit. From its nearly circular polar orbit around
- the planet, the three-axis stabilized spacecraft will
- conduct a comprehensive study of the Martian geosphere over
- a period of 1 Martian year (687 Earth days). Download for
- more