Weltraumagentur MM
| vollständiger Name | Martin Marietta |
| Kod | MM |
| Land | USA |
| Wikipedia | https://en.wikipedia.org/wiki/Martin_Marietta |
| Typ | Commercial |
The Martin Marietta Corporation was an American company founded in 1961 through the merger of Glenn L. Martin Company and American-Marietta Corporation. The combined company became a leader in chemicals, aerospace, and electronics. In 1995, it merged with Lockheed Corporation to form Lockheed Martin.