Mars Climate Orbiter
Videos
The Mars Climate Orbiter was a robotic space probe launched by NASA on December 11, 1998, to study the Martian climate, Martian atmosphere, and surface changes and to act as the communications relay i
Artist's conception of the Mars Climate Orbiter
MARCI camera
Mars Climate Orbiter during assembly
Mars Climate Orbiter undergoing acoustic testing
Mars Exploration Program
Videos
Mars Exploration Program is a long-term effort to explore the planet Mars, funded and led by NASA. Formed in 1993, MEP has made use of orbital spacecraft, landers, and Mars rovers to explore the possi
Mars's thinner atmosphere makes entry, descent, and landing operations of arriving in-situ surface spacecraft more challenging
The often uneven and rocky terrain of Mars makes landing on, and traversing, the planet's surface a significant challenge
The loss of Mars Observer in 1993 prompted the formation of a cohesive Mars Exploration Program
NASA Mars Rover