Video encyclopedia

04/07/1997 Mars Pathfinder lands

The probe consisted of a lander and a robotic rover named Sojourner. It was the first rover outside of the Earth–Moon system. Although planned to last only for one week, Sojourner was active for 83 Martian days. The mission analyzed Martian atmosphere, climate, geology and the composition of its rocks and soil.


  • Essentials 

  • Science experiments 

  • Landing site 

  • Entry, descent and landing 

  • Rover operations 

  • Results from ''Pathfinder'' 

  • End of mission 

  • Naming the rover 

  • Honors 

  • In popular culture