| Type | Booklet Brochure |
|---|---|
| Year | 1992 |
| Space Program | NASA |
| Theme | Astronauts & Space Travel |
| Country of Origin | United States |
Check the listing for details. Mars Observer Mission & Why Mars? Booklets - NASA & Martin Marietta - 1992. Condition: Used, Made in United States. Listed at 29.95 USD. (The Mars Observer was launched in 1992 with an original design life of 3 years. 2) Published in January 1992 by Martin Marietta Astronautics Group, this " Why Mars? ". It is clean & bright.