At deployment, the rover extended to its full height and rolled down a deployment ramp at about 05:40 UT on 6 July 1997 (1:40 a.m. EDT).

and the rover, named Sojourner after American civil rights crusader Sojourner Truth, both outlived their design lives Š the lander by nearly three times, and the rover by 12 times. The rover was launched by an Atlas V rocket from Cape Canaveral, Florida, on November 26, 2011, and landed in Gale crater on Mars on August 6, 2012. The rover, which has been named "Sojourner" is a six-wheeled vehicle, 280 mm high, 630 mm long, and 480 mm wide with a ground clearance of 130 mm, mounted on a "rocker-bogie" suspension. The mission’s 23-pound (10.6 kilograms) rover, Sojourner, was the first rover to explore the surface of Mars, wheeling through Ares Vallis for 83 days. A Look Back at Sojourner, the First Rover on Mars Posted by Jason Major on March 4, 2017 March 4, 2017 The 1-foot-high Sojourner rover on Mars after deployment on July 5, 1997. For example, the Spirit and Opportunity rovers (2004), have made important discoveries about the wet and violent environments on ancient Mars. Curiosity, U.S. robotic vehicle, designed to explore the surface of Mars, which determined that Mars was once capable of supporting life. Mars Exploration Rovers Spirit and Opportunity exploring the planet mars - facts, information, videos and pictures. In 1998, engineer Donna Shirley, manager of the Mars Exploration project at NASAs Jet Propulsion Laboratory, summarizes the success of the Sojourner rover and the most recent discoveries about Mars. In 1998, engineer Donna Shirley, manager of the Mars Exploration project at NASA's Jet Propulsion Laboratory, summarizes the success of the Sojourner rover and the most recent discoveries about Mars. The rover was stowed on the lander at a height of 180 mm. The rover was stowed on the lander at a height of 180 mm. Launched one month after Mars Global Surveyor, Pathfinder was sent on a slightly shorter seven-month trajectory designed for arrival earlier. The rover, which has been named "Sojourner" is a six-wheeled vehicle, 280 mm high, 630 mm long, and 480 mm wide with a ground clearance of 130 mm, mounted on a "rocker-bogie" suspension. Mars at Home DIY Activities for Students and Teachers.

It consisted of a lander, renamed the Carl Sagan Memorial Station, and a lightweight (10.6 kg/23 lb) wheeled robotic Mars rover named Sojourner, which became the first rover to operate outside the Earth–Moon system. The mission landed a rover -- Sojourner -- on the surface of Mars using an air bag landing system and innovative petal design, which have been used since in various incarnations to land other rovers on the Red Planet.