Mars Odyssey is a robotic spacecraft launched by NASA in 2001 to explore the planet Mars. It was designed to study the planet's surface, climate, and geology, providing valuable data about its history and potential for past life. The spacecraft uses a variety of scientific instruments to map the Martian surface and analyze its mineral composition. Since its arrival at Mars in 2002, Mars Odyssey has made significant discoveries, including the detection of water ice beneath the surface. It has also served as a communication relay for other missions, such as the Mars rovers, enhancing our understanding of the Red Planet and supporting future exploration efforts.