NASA's Curiosity Mars rover celebrates 4,000 'sols' on the Red Planet
As NASA's Curiosity rover passes 4,000 'sols,' or Martian days, on the Red Planet, a Space.com reporter who began work in 2012 reflects on what that means.
The Mars rover Curiosity, also known as the Mars Science Laboratory, landed on the Red Planet in August 2012.
Related Topics: Mars, NASA, India Mars Orbiter Mission, Mars Rover Opportunity, Exomars